$MirOS: www/.linked/acronyms,v 1.273 2013/05/19 22:05:06 tg Exp $
$miros: src/sys/sys/errno.h,v 1.10 2012/12/31 20:19:49 tg Exp $
$NetBSD: acronyms,v 1.215 2013/05/17 17:43:04 dholland Exp $
$NetBSD: acronyms.comp,v 1.134 2013/05/17 17:43:04 dholland Exp $
0	[Kfz:D] Diplomatenkennzeichen oder Politiker
1	one, on
1080I	1920x540px (interlaced)
1080P	1920x1080px
10Q	thank you
10X	tenx (thanks)
1337	elite ("leet")
2	two, to
224	today, tomorrow, forever
2IC	second in charge
31337	elite ("eleet")
3GPP	3rd generation partnership project
3LD	third-level domain
3WHS	three-way handshake
4	four, for
4TF	[gc] fourth to find
4TW	for the win
720P	1280x720px
8	eight, ate
8VSB	8-state vestigial side band modulation
:'(	(emoticon: cry, with tears)
:(	(emoticon: sad)
:)	(emoticon: smile)
:-(	(emoticon: sad)
:-)	(emoticon: smile)
:-D	(emoticon: laughing)
:-O	(emoticon: shocked)
:-P	(emoticon: tongue)
:D	(emoticon: laughing)
:O	(emoticon: shocked)
:O)	(emoticon: clown)
:P	(emoticon: tongue)
;)	(emoticon: wink)
;-)	(emoticon: wink)
</3	emoticon (a broken heart)
<3	emoticon (a heart)
A	[Kfz:D] kreisfreie Stadt und Landkreis Augsburg
A	[Kfz] Österreich
A-C	apt-cache
A-G	apt-get
A/N	author's note
AA	anti-aliasing
AA	Attribute Authority
AA	[Kfz:D] Landkreis Aalen
AA	[Kfz:D] Ostalbkreis
AAA	authentication, authorisation and accounting
AAMOF	as a matter of fact
AAO	am angegebenen Orte (cf. ibid.)
AAT	average access time
AB	[Kfz:D] kreisfreie Stadt und Landkreis Aschaffenburg
ABC	(latin Alphabet)
ABC	American Broadcasting Company
ABC	arbitrary bad-smelling cheese
ABC	atomic, biological and chemical (weapons)
ABG	[Kfz:D] Landkreis Altenburger Land
ABI	application binary interface
ABI	[Kfz:D] Landkreis Anhalt-Bitterfeld
ABM	Arbeitsbeschaffungsmaßnahme
ABO	abonnement
ABR	available bit rate
AC	air conditioning
AC	alternating current
AC	Attribute Certificate
AC	audible chuckle
AC	[ccTLD] Ascension
AC	[Kfz:D] Städteregion Aachen
ACI	adjacent channel interferer
ACID	atomicity, consistency, isolation, durability
ACK	achja, cönnt klappen
ACK	acknowledgement / [japanese] Hai!
ACK	Amsterdam compiler kit
ACK	U+0006 ␆ ACKNOWLEDGE
ACL	access control list
ACL	active current loop
ACM	Association for Computing Machinery
ACM	Attribute Certificate Manager
ACME	A Company Making Everything
ACOS	Arkuskosinus
ACP	Atari Coldfire Project – http://acp.atari.org/
ACP	auxillary control process
ACP	auxillary control program
ACPI	advanced configuration and power interface
ACPI	advanced conflagration punishment interface
ACS	access control set
ACU	automatic calling unit
AD	(towards)
AD	advertisement
AD	anno domini
AD	[ccTLD] Andorra
ADB	Apple desktop bus
ADC	analog [to] digital converter
ADD	acronym driven development
ADD	Attention Deficit Disorder
ADH	cf. ADS
ADHD	Attention Deficit Disorder in combination with hyperactivity
ADHS	Aufmerksamkeitsdefizitsyndrom in Komorbidität mit Hyperaktivität (cf. ADHD)
ADN	any day now
ADN	[Kfz] Demokratische Volksrepublik Jemen (Südjemen) (veraltet)
ADO	active data objects
ADP	automatic data processing
ADPCM	adaptive differential pulse code modulation
ADS	alternate data stream
ADS	Aufmerksamkeitsdefizitsyndrom (cf. ADD)
ADSL	asymmetric digital subscriber line
ADT	abstract data type
AE	[ccTLD] Vereinigte Arabische Emirate
AE	[Kfz:D] Landkreis Auerbach
AEAP	as early as possible
AERO	[sTLD] aeronautics (in der Luftfahrt tätige Organisationen)
AES	Advanced Encryption Standard
AES	application environment services (for GEM)
AF	[ccTLD] Afghanistan
AFAIAC	as far as I am concerned
AFAIC	as far as I'm concerned
AFAICR	as far as I can recall
AFAICR	as far as I can remember
AFAICS	as far as I can see
AFAICT	as far as I can tell
AFAIHH	as far as I have heard
AFAIK	as far as I know
AFAIR	as far as I recall
AFAIR	as far as I remember
AFAIR	as far as I remember
AFAIU	as far as I understand
AFD	away from desktop
AFF	AdultFanFiction.Net
AFG	[Kfz] Afghanistan
AFK	auffem Klo
AFK	away from keyboard
AFS	Andrew File System
AFU	all fucked up
AFW	away from window
AG	Aktiengesellschaft
AG	Amtsgericht
AG	Arbeitgeber
AG	Arbeitsgericht
AG	[ccTLD] Antigua und Barbuda
AG	[Kfz] Antigua und Barbuda
AG	[Schule DE] Arbeitsgemeinschaft
AGC	automatic gain control
AGM	annual general meeting
AGP	accelerated graphics port
AH	[Kfz:D] Kreis Ahaus
AI	Adobe Illustrator
AI	analog input
AI	artificial intelligence
AI	[ccTLD] Anguilla
AIB	[Kfz:D] Landkreis Bad Aibling
AIC	[Kfz:D] Landkreis Aichach-Friedberg
AINEC	and it's not even close
AISE	as I see it
AIU	as I understand
AIUI	as I understand it
AIX	Ain't unIX
AK	[HP] Avada Kedavra
AK	[Kfz:D] Landkreis Altenkirchen
AKA	also known as
AKUEFI	Abkürzungsfimmel
AKÜFI	Abkürzungsfimmel
AL	access list
AL	active link
AL	[ccTLD] Albanien
AL	[Kfz:D] Landkreis Altena
AL	[Kfz] Albanien
ALE	address latch enable
ALF	Außerirdische Lebensform
ALF	[Kfz:D] Landkreis Alfeld
ALFA	A (International Radiotelephony Spelling Alphabet)
ALPHA	A (International Radiotelephony Spelling Alphabet)
ALS	ambient light sensor
ALS	[Kfz:D] Landkreis Alsfeld
ALTTLD	alternative top-level domain (using an alternative DNS root)
ALU	acronym lookup
ALU	address lookup
ALU	arithmetic and logical unit
ALZ	[Kfz:D] Landkreis Alzenau in Unterfranken
AM	access method
AM	alignment mask
AM	amplitude modulation
AM	ante meridiem (before noon)
AM	Application Maintainer/Manager
AM	[ccTLD] Armenien
AM	[Kfz:D] Landkreis Amberg-Sulzbach
AMC	Adaptive Modulation and Coding
AMI	alternate mark inversion
AMOL	a mountain of love
AMQP	Advanced Message Queuing Protocol
AMT	active management technology
AN	Arabic number
AN	Arbeitnehmer
AN	author's note (usually A/N)
AN	[ccTLD] Niederländische Antillen (2010 aufgelöst, die Inseln erhalten eigene TLDs: .cw, .sx und .bq)
AN	[Kfz:D] kreisfreie Stadt und Landkreis Ansbach
ANA	[Kfz:D] Landkreis Annaberg
AND	[Kfz] Andorra
ANG	[Kfz:D] Landkreis Angermünde
ANG	[Kfz] Angola
ANH	[SW] Episode IV: A New Hope
ANK	[Kfz:D] Landkreis Anklam
ANK	[Kfz:D] Landkreis Ostvorpommern
ANN	announcement
ANSI	American National Standards Institute
ANTON	A (deutsches Funkalphabet)
AO	analog output
AO	at work
AO	[ccTLD] Angola
AO3	Archive of Our Own (by the OTW) -- http://archiveofourown.org/
AOL	Alert-on-LAN
AOL	America OnLine
AOP	aspect-oriented programming
AOS	add or subtract
AOT	ahead of time
AOTC	[SW] Episode II: Attack of the Clones
AP	access point
AP	application processor
AP	[Kfz:D] Landkreis Weimarer Land
APC	U+009F APPLICATION PROGRAM COMMAND
APD	[Kfz:D] Landkreis Apolda
API	application programming interface
APIC	advanced programmable interrupt controller
APINKE	[gc] Another Place (originally Park, in the USA) I Never Knew Existed (spoken 'apinky')
APIP	automatic private (Legacy) IP address
APIPA	automatic private IP addressing
APK	Android Application Package (similar to JAR)
APOGOST	[Schule DE] Allgemeine Prüfungsordnung der Gymnasialen Oberstufe
APT	Advanced Packaging Tool
AQ	[ccTLD] Antarktis (hier definiert als alles südlich von 60° S)
AQM	active queue management
AR	ar(1) archive – *.a
AR	[ccTLD] Argentinien
AR	[Kfz:D] Kreis Arnsberg
ARAT	always running APIC timer
ARC	adaptive replacement cache
ARCCOS	Arkuskosinus
ARCSIN	Arkussinus
ARCTAN	Arkustangēns
ARGE	Amt für Repression, Grundrechtsentzug und Existenzvernichtung
ARJ	ARJ archive (traditional archive compressor)
ARM	Acorn RISC Machine
ARM	Advanced RISC Machines
ARM	[Kfz] Armenien
ARN	[Kfz:D] Landkreis Arnstadt
ARP	Address Resolution Protocol
ARPA	Advanced Research Projects Agency
ARPA	[uTLD] arpanet (Infrastrukturdomain)
ARQ	automatic repeat request
ARR	address range register
ART	[Kfz:D] Landkreis Artern
ARU	audio response unit
ARU	[Kfz] Aruba (nicht offiziell)
AS	autonomous system
AS	[ccTLD] Amerikanisch-Samoa
AS	[Kfz:D] Landkreis Amberg-Sulzbach
ASAIC	as soon as I can
ASAP	as soon as possible
ASC	advanced smart cache
ASCII	American Standard Code for Information Interchange
ASD	agile software development
ASD	[Kfz:D] Landkreis Aschendorf-Hümmling
ASE	advanced software environment
ASF	The Apache™ Foundation
ASIA	[sTLD] asia (ICANN-Region Asien/Australien/Pazifik)
ASIC	application-specific integrated circuit
ASIN	Arkussinus
ASK	amplitude shif keying
ASL	[Kfz:D] Landkreis Aschersleben-Staßfurt
ASLR	address space layout randomisation
ASM	Anti-Structures Missile
ASN	autonomous system number
ASPM	active state power management
ASQ	automated software quality
ASR	address space register
ASS	After Sales Support
ASS	dumbhead
ASS	jackass, moke (zool.)
AST	abstract syntax tree
AST	Anruf-Sammel-Taxi
AST	asynchronous trap
AST	AT&T Software Technology (ast-ksh package) from AT&T Labs Research
ASZ	[Kfz:D] Landkreis Aue-Schwarzenberg
AT	access time
AT	advanced technology
AT	anti-tank weapon
AT	Hayes modem command leader
AT	[ccTLD] Österreich
AT	[Kfz:D] Landkreis Altentreptow
ATA	advanced technology attachment
ATAN	Arkustangēns
ATAPI	advanced technology attachment packet interface
ATC	address translation cache
ATEOTD	at the end of the day
ATM	asynchronous transfer mode
ATM	at the moment
ATM	automated teller machine
ATM	automatic teller machine
ATW	around the world
ATW	Atari Transputer Workstation
ATX	advanced technology extended
AU	alternate universe
AU	[ccTLD] Australien
AU	[Kfz:D] Landkreis Aue
AU	[Kfz:D] Westerzgebirgskreis
AUB	please (dutch: alstublieft / als het u belieft)
AUR	[Kfz:D] Landkreis Aurich (Ostfriesland)
AUS	[Kfz] Australien
AUT	[Kfz] Palästinensische Autonomiegebiete/Gazastreifen (nicht offiziell)
AV	anti virus
AVI	Audio/Video (RIFF)
AVL	Adelson-Velsky-Landis
AVX	advanced vector extensions
AW	Antwort (MS Outlook mis-translation)
AW	Armer Winzer
AW	[ccTLD] Aruba
AW	[Kfz:D] Landkreis Ahrweiler
AWACBE	as well as can be expected
AWK	Aho, Weinberger and Kernighan
AWOL	absent without official leave
AWOL	away without leave
AX	accumulator
AX	[ccTLD] Åland (seit 1. März 2006, zuvor .aland.fi)
AX	[Kfz] Åland
AXA	[Kfz] Anguilla
AYB	all your base are belong to us
AYBABTU	all your base are belong to us
AYF	all your fault
AYOR	at your own risk
AYT	are you there
AZ	Aktenzeichen
AZ	[ccTLD] Aserbaidschan
AZ	[Kfz:D] Landkreis Alzey-Worms
AZ	[Kfz] Aserbaidschan
AZE	[Kfz:D] Landkreis Anhalt-Zerbst
AÖ	[Kfz:D] Landkreis Altötting
B	[Kfz:D] Berlin
B	[Kfz:D] Berlin, Senat und Abgeordnetenhaus
B	[Kfz] Belgien
B/C	because
B/S	bullshit
B/W	bandwidth
B/W	between
B/W	black and white
B4	before
BA	Baccalaureus Artium
BA	byte align
BA	[ccTLD] Bosnien und Herzegowina
BA	[Kfz:D] kreisfreie Stadt und Landkreis Bamberg
BA	[Kfz] Birma (veraltet)
BAD	[Kfz:D] Stadtkreis Baden-Baden
BAG	Bundesarbeitsgericht
BAK	back at keyboard
BAK	Backup
BAL	basic assembly language
BALGE	by and large good enough
BAMF	Bad Ass Mother Fucker
BAMP	BSD Apache MySQL {Perl,PHP,Python}
BAMPP	BSD Apache MySQL {Perl,PHP,Python}
BAR	base address register
BAR	[Kfz:D] Landkreis Barnim
BASH	GNU Bourne-Again Shell
BASIC	beginners' all-purpose symbolic instruction code (_the_ programming language per se)
BAT	Baby-AT (Formfaktor, like ATX)
BAU	business as usual
BB	big brother
BB	Brandenburg
BB	[ccTLD] Barbados
BB	[Kfz:D] Landkreis Böblingen
BBC	British Broadcasting Company
BBG	[Kfz:D] Landkreis Bernburg
BBIAB	be back in a bit
BBIAF	be back in a few
BBL	[I'll] be back later
BBL	[Kfz:D] Brandenburg, Landesregierung und Landtag
BBM	BlackBerry Messenger
BBQ	barbecue
BBR	burnt beyond repair
BBS	be back soon
BBS	bulletin board system
BBS	[altTLD] Bulletin Board System
BBT	be back tomorrow
BC	before christus
BC	[Kfz:D] Landkreis Biberach
BCB	[gc] Bookcrossing Book
BCC	blind carbon copy
BCC	Broadcast Call Control
BCD	binary coded decimal
BCH	[Kfz:D] Landkreis Buchen
BCNU	be seeing you
BCNUL8R	be seeing you later
BCP	best current practice
BCR	byte count register
BCS	base configuration space
BCT	Brigade Combat Team
BD	baud
BD	[ccTLD] Bangladesch
BD	[Kfz:D] Dienstfahrzeuge der Verfassungsorgane1
BD	[Kfz] Bangladesch
BDD	binary decision diagram
BDF	Bitmap Distribution Format
BDFC	(vertically) compressed form of BDF
BDFL	Benevolent Dictator for Life
BDI	bit deinterleave
BDS	Branch Delay Slot
BDS	[Kfz] Barbados
BDUF	big design up front
BE	Berlin
BE	Broteinheit
BE	[ccTLD] Belgien
BE	[Kfz:D] Kreis Beckum
BED	[Kfz:D] Landkreis Brand-Erbisdorf
BEDO	burst extended data output
BEI	[Kfz:D] Landkreis Beilngries
BEL	U+0007 ␇ BELL
BEL	[Kfz:D] Landkreis Belzig
BENELUX	Belgium, Netherlands, Luxembourg
BER	basic encoding rules
BER	bit error rate/ratio
BER	[Kfz:D] Landkreis Bernau
BERTA	B (deutsches Funkalphabet)
BF	best friend
BF	boyfriend
BF	[ccTLD] Burkina Faso
BF	[Kfz:D] Kreis Steinfurt
BF	[Kfz] Burkina Faso
BFD	big fucking deal
BFD	binary file descriptor
BFD	binary format descriptor
BFF	best friend forever
BFG	big fat grin
BFH	big fucking hammer
BFH	Bundesfinanzhof
BFKL	big fscking kernel lock
BFS	breadth-first search
BFT	binary file transfer
BG	[ccTLD] Bulgarien
BG	[Kfz:D] Dienstfahrzeuge des Bundesgrenzschutzes
BG	[Kfz] Bulgarien
BGA	ball grid array
BGD	[Kfz:D] Teilkreis Berchtesgaden im Landkreis Bad Reichenhall
BGD	[Kfz:D] Teilkreis Berchtesgaden im Landkreis Berchtesgadener Land
BGH	Bundesgerichtshof
BGL	[Kfz:D] Landkreis Berchtesgadener Land
BGP	Border Gateway Protocol
BH	Büstenhalter
BH	[ccTLD] Bahrain
BH	[Kfz:D] Landkreis Bühl
BH	[Kfz] Belize (veraltet)
BH	[Kfz] Britisch Honduras (veraltet)
BHT	[Kfz] Bhutan
BI	two-
BI	[ccTLD] Burundi
BI	[Kfz:D] Kreis Bielefeld
BI	[Kfz] Britisch-Indien (veraltet)
BIAB	back in a bit
BIAF	back in a few
BIALW	back in a little while
BIAS	back in a second
BIAW	back in a while
BICC	Bearer Independent Call Control protoco
BID	[Kfz:D] Landkreis Biedenkopf
BIH	[Kfz] Bosnien und Herzegowina
BIN	[Kfz:D] Landkreis Bingen
BIND	Berkeley Internet Name Daemon
BIND	Buggy Internet Name Dæmon
BINNMU	binNMU, binary non-maintainer upload from unchanged sources
BIOS	basic input/output system
BIR	[Kfz:D] Landkreis Birkenfeld, Stadt Idar-Oberstein
BISSOTWO	2 (International Radiotelephony Spelling Alphabet)
BIST	built-in self-test
BISUP	B-ISDN User Part
BIT	[Kfz:D] Eifelkreis Bitburg-Prüm
BIU	bus interface unit
BIW	[Kfz:D] Landkreis Bischofswerda
BIZ	[uTLD] business (Geschäftliches)
BJ	[ccTLD] Benin
BJ	[Kfz] Benin
BK	[Kfz:D] Landkreis Backnang
BK	[Kfz:D] Landkreis Börde
BKDG	BIOS and kernel developer's guide
BKS	[Kfz:D] Landkreis Bernkastel
BL	[Kfz:D] Landkreis Balingen
BL	[Kfz:D] Zollernalbkreis
BL	[Kfz] Basutoland (veraltet)
BLAS	basic linear algebra subprograms
BLB	[Kfz:D] Kreis Wittgenstein
BLC	back light control
BLK	[Kfz:D] Burgenlandkreis
BLOB	binary large object
BM	Bereifter Mörder
BM	bus master
BM	[ccTLD] Bermuda
BM	[Kfz:D] Erftkreis
BM	[Kfz:D] Kreis Bergheim
BM	[Kfz:D] Rhein-Erft-Kreis
BM	[Kfz:D] Zulassungsstelle in Hürth
BMC	baseboard management controller
BMI	body mass index
BMIC	bus master interface controller
BMP	bitmap
BMZ	Brandmeldezentrale
BN	boundary neutral
BN	[ccTLD] Brunei
BN	[Kfz:D] kreisfreie Stadt Bonn
BN	[Kfz:D] Landkreis Bonn
BNA	[Kfz:D] Landkreis Borna
BNF	Backus-Naur form
BNYA	burned now you are
BO	binary output
BO	[ccTLD] Bolivien
BO	[Kfz:D] kreisfreie Stadt Bochum
BOAT	bring out another thousand (hole in the water you throw money into)
BOATILAS	bend over and take it like a slut
BOC	but of course
BOCU	Binary Ordered Compression for Unicode
BOF	beginning of file
BOFH	bastard operator from hell
BOG	[Kfz:D] Landkreis Bogen
BOGAHICA	bend over, grab ankles, here it comes again
BOH	[Kfz:D] kreisfreie Stadt Bocholt
BOHICA	bend over here it comes again
BOL	[Kfz] Bolivien
BOM	beginning of message
BOM	Byte Order Mark (U+FEFF)
BOM	U+FEFF ZERO WIDTH NO-BREAK SPACE
BOR	[Kfz:D] Kreis Borken
BOT	back on topic
BOT	[Kfz:D] kreisfreie Stadt Bottrop
BP	base pointer
BP	boot processor
BP	[Kfz:D] Dienstfahrzeuge der Bundespolizei
BP	[Kfz:D] Dienstfahrzeuge der Bundespost
BP	[Kfz] Botswana (veraltet)
BPB	BIOS parameter block
BPF	Berkeley Packet Filter
BPH	U+0082 BREAK PERMITTED HERE
BPI	bits per inch
BPM	business process modelling
BPP	bits per pixel
BPS	bits per second
BPSK	binary phase shift keying
BQ	[ccTLD] Saba
BQS	Berkeley quality software
BR	branch
BR	[ccTLD] Brasilien
BR	[Kfz:D] Landkreis Bruchsal
BR	[Kfz] Brasilien
BRA	[Kfz:D] Landkreis Wesermarsch
BRAVO	B (International Radiotelephony Spelling Alphabet)
BRB	[I'll] be right back
BRB	[Kfz:D] Landkreis Brandenburg
BRE	basic regular expression
BRG	[Kfz:D] Landkreis Burg
BRG	[Kfz] Britisch-Guayana (veraltet)
BRI	[Kfz:D] Kreis Brilon
BRK	[Kfz:D] Landkreis Bad Brückenau
BRL	[Kfz:D] Landkreis Blankenburg
BRN	[Kfz] Bahrain
BRT	[I'll] be right there
BRU	[Kfz] Brunei
BRV	[Kfz:D] Landkreis Bremervörde
BS	binary sequence
BS	bullshit
BS	U+0008 ␈ BACKSPACE
BS	[ccTLD] Bahamas
BS	[Kfz:D] Landkreis Braunschweig
BS	[Kfz] Bahamas
BS	[Kfz] Britisch-Somaliland (veraltet)
BSB	[Kfz:D] Landkreis Bersenbrück
BSC	Baccalaureus Scientiae
BSD	basically secure and dependable
BSD	Berkeley Software Distribution
BSD	big scary daemons
BSD	Blobs Schaden Dir
BSD	Blobs Sind Doof
BSD	booze, sex, drugs
BSDA	BSD Associate (BSDCG exam)
BSDCG	BSD Certification Group
BSF	bit scan forward
BSG	Bundessozialgericht
BSK	[Kfz:D] Landkreis Beeskow
BSOD	blue screen of death
BSP	binary space partition
BSP	board support package
BSP	bootstrap processor
BSP	bug-squashing party
BSR	bit scan reverse
BSS	block started by symbol
BSSAP+	BSS Application Part Plus
BSSGP	Base Station System GPRS Protocol
BT	bit test
BT	BitTorrent
BT	Bluetooth
BT	[ccTLD] Bhutan
BT	[Kfz:D] kreisfreie Stadt und Landkreis Bayreuth
BTAT	been there, ate that
BTC	bit test [and] complement
BTDB	been there, done both
BTDT	been there, done that
BTF	[Kfz:D] Landkreis Bitterfeld
BTFIT	been there, fell into that
BTFT	been there, fixed that
BTR	bit test [and] reset
BTS	bit test [and] set
BTS	bits per second
BTS	Bug Tracking System (debbugs)
BTST	been there, seen that
BTSTF	been there, seen that fail
BTTH	boot to the head
BTTT	been there, tried that
BTU	back to you
BTU	British Thermal Units
BTW	by the way
BTX	(new form factor like ATX, ITX, BAT)
BTX	Balanced Technology Extended
BTX	Bildschirmtext (der Deutschen Bundespost Telekom)
BU	[Kfz:D] Landkreis Burgdorf
BUL	[Kfz:D] Landkreis Burglengenfeld
BUR	[Kfz] Birma (veraltet)
BUR	[Kfz] Myanmar (veraltet)
BV	bijvoorbeeld (for example, zum Beispiel)
BV	[ccTLD] Bouvetinsel (auch .no)
BVERFG	Bundesverfassungsgericht
BVERWG	Bundesverwaltungsgericht
BW	Baden-Württemberg
BW	bandwidth
BW	black and white
BW	[ccTLD] Botswana
BW	[Kfz:D] Dienstfahrzeuge der Bundes-Wasser- und -schifffahrtsverwaltung
BW	[Kfz] Botswana (nicht offiziell)
BWC	because we can
BWL	[Kfz:D] Baden-Württemberg, Landesregierung und Landtag
BWM	block-write mode
BX	base register
BY	Bayern
BY	[ccTLD] Weißrußland
BY	[Kfz] Weißrußland
BYL	[Kfz:D] Bayern, Landesregierung und Landtag
BYOP	[gc] bring your own pen
BYOP	[gc] bring your own pencil
BZ	[ccTLD] Belize
BZ	[Kfz:D] Landkreis Bautzen
BZ	[Kfz] Belize
BZA	[Kfz:D] Landkreis Bergzabern
BÖ	[Kfz:D] Bördekreis
BÜD	[Kfz:D] Landkreis Büdingen
BÜR	[Kfz:D] Kreis Büren
BÜS	[Kfz:D] Gemeinde Büsingen am Hochrhein im Landkreis Konstanz
BÜZ	[Kfz:D] Landkreis Bützow
C	[Kfz:D] Landkreis Chemnitz
C	[Kfz] Kuba
C++	CFrustFrust
C4	(some kind of explosive)
C4	CCC Cologne
CA	certificate authority
CA	[ccTLD] Kanada
CA	[Kfz:D] Landkreis Calau
CABAL	http://www.lucianobello.com.ar/post/there-is-no-cabal-but-whats-a-cabal/
CABAL	TINC
CAD	computer-aided design
CAM	Categorical Abstract Machine
CAM	computer-aided (or -assisted) manufacturing
CAM	conditional access module
CAM	content addressable memory
CAM	[Kfz] Kamerun
CAML	Categorical Abstract Machine Language
CAML	Collaborative Application Markup Language
CAN	U+0018 ␘ CANCEL
CAPTCHA	Completely Automated Public Turing test to tell Computers and Humans Apart
CARP	Common Address Redundancy Protocol
CAS	(atomic) compare and swap
CAS	column address strobe
CAS	Community Authorisation Service
CAS	computer algebra system
CAS	[Kfz:D] kreisfreie Stadt Castrop-Rauxel
CASE	computer aided software engineering
CASEVAC	Casualty Evacuation
CAT	[sTLD] catalan (katalanische Sprache und Kultur)
CAU	control access unit
CAV	constant angular velocity (as opposed to CLV)
CB	[Kfz:D] Landkreis Cottbus
CB	[Kfz] Belgisch-Kongo (veraltet)
CBC	cipher block chaining
CBR	constant bit rate
CC	C compiler
CC	carbon coby
CC	Creative Commons
CC	credit card
CC	[ccTLD] Kokosinseln
CCAR	Cisco Certified Architect
CCC	Chaos Computer Club
CCD	charge coupled device
CCDA	Cisco Certified Design Associate
CCDE	Cisco Certified Design Expert
CCDP	Cisco Certified Design Professional
CCENT	Cisco Certified Entry Networking Technician
CCH	U+0094 CANCEL CHARACTER
CCI	co-channel interferer
CCIE	Cisco Certified Internetwork Expert
CCIP	Cisco Certified Internetwork Professional
CCITT	Comitè Consultatif Internationale de Tèlègraphie et Tèlèphonie
CCITT	now: ITU-T
CCNA	Cisco Certified Network Associate
CCNP	Cisco Certified Network Professional
CCTLD	country-code top-level domain
CD	cache disable
CD	compact disc
CD	[ccTLD] Demokratische Republik Kongo
CD	[Kfz] Demokratische Republik Kongo (Verwechslungsgefahr!) (veraltet)
CDDA	compact disc digital audio
CDMA	code division multiple access
CDN	content distribution network
CDN	[Kfz] Kanada
CDR	Corel Draw
CDRAM	cache dynamic random access memory
CE	common era
CE	Compute Element (in a Grid)
CE	[Kfz:D] Landkreis Celle
CEO	chief executive officer
CER	canonical encoding rules
CF	compact flash
CF	confer (see)
CF	[ccTLD] Zentralafrikanische Republik
CFF	Chemins de fer fédéraux suisses (SBB)
CFG	context-free grammar
CFG	control-flow graph
CFO	Chief Financial Officer
CFP	call for papers
CFP	call for projects
CFR	Căile Ferate Române / Rumänische Eisenbahn / Chemins de Fer Roumaine
CFV	call for votes
CFY	calling for you
CG	center of gravity
CG	control gate
CG	[ccTLD] Republik Kongo
CGA	color graphics adapter
CGI	common gateway interface
CGN	Carrier-Grade NAT
CGO	[Kfz] Demokratische Republik Kongo
CGO	[Kfz] Kongo-Kinshasa (veraltet)
CH	Context Handler
CH	[ccTLD] Schweiz
CH	[Kfz] Schweiz
CHA	[Kfz:D] Landkreis Cham
CHAP	Challenge-Handshake Authentication Protocol
CHARLIE	C (International Radiotelephony Spelling Alphabet)
CHN	[Kfz] China (Volksrepublik) (nicht offiziell)
CHS	cylinder/head/sector
CI	common interface
CI	component interface
CI	continuous integration
CI	[ccTLD] Elfenbeinküste
CI	[Kfz] Elfenbeinküste
CIA	Central Intelligence Agency (USA)
CIA	Instant Version Control Informant bots
CICS	Customer Information Control System
CIDR	Classless Inter-Domain Routing
CIFS	Common Internet File System (old SMB)
CIG	common interest group
CIL	common intermediate language
CIR	carrier-to-interference ratio
CIS	contact image sensor
CITO	[gc] cache in, trash out
CJK	Chinese, Japanese and Korean
CJKV	Chinese, Japanese, Korean and Vietnamese
CK	[ccTLD] Cookinseln
CL	[ccTLD] Chile
CL	[Kfz] Sri Lanka
CLF	common log format
CLI	command line interface
CLI	misspelling for CIL in .net context
CLIP	Calling Line Identification Presentation (feature on callee side to present incoming transmitted phone number)
CLIR	Calling Line Identification Restriction (feature on caller side to prevent transmitting the own phone number - three modi: CLIR presentation (off by default, on by dial prefix), CLIR restriction (on by default, off by dial prefix), always enabled)
CLIRO	CLIR Override (for police, etc.)
CLOUD	Can't Locate Our Users' Data
CLP	[Kfz:D] Landkreis Cloppenburg
CLR	common language runtime
CLTT	closed loop thermal throttling
CLUT	color look-up table
CLV	constant linear velocity (as opposed to CAV)
CLZ	[Kfz:D] Landkreis Zellerfeld
CM	configuration management
CM	[ccTLD] Kamerun
CMA	concert multithread architecture
CMI	control management interface
CMI	control method interface
CMIIW	correct me if I'm wrong
CMOS	complementary metal-oxide-semiconductor
CMP	chip multi-processing
CMS	colour management system
CMS	content management system
CMS	Cryptographic Message Syntax
CMYK	cyan magenta yellow black
CN	canonical name
CN	common name
CN	[ccTLD] China
CNB	[Kfz] Nordborneo (veraltet)
CNC	computer numerical control
CNL	CityNightLine
CNP	continued [in my] next post
CNR	carrier-to-noise ratio
CO	[ccTLD] Kolumbien
CO	[gc] cache owner
CO	[Kfz:D] kreisfreie Stadt und Landkreis Coburg
CO	[Kfz] Kolumbien
COB	close of business [day]
COC	[Kfz:D] Landkreis Cochem-Zell
COE	[Kfz:D] Kreis Coesfeld
COF	current operating frequency
COFDM	coded orthogonal frequency division multiplexing
COFF	common object file format
COLP	Connected Line Identification Presentation (feature on caller side to see which phone number was actually connected)
COLR	Connected Line Identification Restriction (feature on callee side to prevent caller to see the actually connected phone number)
COM	component object model
COM	[Kfz] Komoren
COM	[uTLD] commercial (Firmen)
COMA	cache-only memory architecture
COOP	[sTLD] cooperatives (Gesellschaften)
CORBA	common object request broker architecture
CORDIC	COordinate Rotation DIgital Computer algorithm
COS	Kosinus
COS	[HP] Chamber of Secrets
COTS	commercial off-the-shelf
COW	copy-on-write
CP	continuous pilot
CP	corporal punishment
CPB	core performance boost
CPC	cost per click
CPE	common phase error
CPG	clock pulse generator
CPL	current privilege level
CPLD	complex programmable logic device
CPP	C præprocessor
CPS	characters per second
CPT	command pass through
CPU	central processing unit
CR	U+000D ␍ CARRIAGE RETURN
CR	[ccTLD] Costa Rica
CR	[Kfz:D] Landkreis Crailsheim
CR	[Kfz] Costa Rica
CRC	cyclic redundancy check
CREAM	Computing Resource Execution And Management (CE)
CRL	carrier recovery loop
CRL	certificate revocation list
CRLF	carriage return / line feed
CRM	customer relationship management
CRO	[Kfz] Kroatien (veraltet)
CRT	cathode ray tube
CS	cable select
CS	chip select
CS	code segment
CS	computer science
CS	Counter-Strike
CS	[ccTLD] Tschechoslowakei (heute .cz und .sk; später für Serbien und Montenegro reserviert, jedoch nie verwendet)
CS	[Kfz] Slowakei (veraltet)
CS	[Kfz] Tschechien (veraltet)
CS	[Kfz] Tschechoslowakei (veraltet)
CSD	Circuit Switched Data
CSF	Cerebro-Spinal Fluid
CSH	C Shell
CSI	channel state information
CSI	common system interface
CSI	crime scene investigation
CSI	U+009B CONTROL SEQUENCE INTRODUCER
CSMA	carrier sense multiple access
CSMA/CA	carrier sense multiple access with collision avoidance
CSMA/CD	carrier sense multiple access with collision detection
CSR	certificate signing request
CSR	control [and] status registers
CSRF	cross-site request forgery
CSS	cascading style sheets
CSS	Content Scrambling System
CSV	comma-separated values
CTF	capture the flag
CTM	close to metal
CTN	can't talk now
CTO	Chief Technology Officer
CTS	clear to send
CU	see you
CU	[ccTLD] Kuba
CU	[Kfz] Curaçao (veraltet)
CUA	common user access
CUDA	Compute Unified Device Architecture (GPU programming)
CUI	(n)curses user interface
CUL	see you later
CUR	cursor (file format, like ICO)
CUT	coordinated universal time (UTC)
CUX	[Kfz:D] Landkreis Cuxhaven
CV	control voltage
CV	curriculum vitae
CV	Lebenslauf
CV	[ccTLD] Kap Verde
CV	[Kfz] Kap Verde
CVE	Common Vulnerabilities and Exposures
CVS	Concurrent Versions System
CW	[ccTLD] Curaçao
CW	[gc] CacheWolf
CW	[Kfz:D] Landkreis Calw
CX	counter register
CX	[ccTLD] Weihnachtsinsel
CY	[ccTLD] Zypern
CY	[Kfz] Zypern
CYA	see you around
CYE	check your email
CZ	[ccTLD] Tschechien
CZ	[Kfz] Tschechien
C|N>K	coffee pipe nose to keyboard
CÄSAR	C (deutsches Funkalphabet)
D	[Kfz:D] Kreis Düsseldorf-Mettmann
D	[Kfz] Deutsche Demokratische Republik (veraltet)
D	[Kfz] Deutschland
D&R	duck and run
D/L	download
D/W	don't worry
DA	destination address
DA	[Kfz:D] kreisfreie Stadt Darmstadt und Landkreis Darmstadt-Dieburg
DA	[Kfz] Freie Stadt Danzig (veraltet)
DAA	distributed application architecture
DAB	digital audio broadcasting
DAC	digital [to] analog converter
DAC	discretionary access control
DACH	D-A-CH: Germany, Austria, Switzerland
DAD	duplicate address detection
DAD	father (USA English)
DAEMON	(that cuddly red BSD mascot)
DAEMON	disk and execution monitor
DAFUQ	... the fuck
DAH	[Kfz:D] Landkreis Dachau
DAM	Debian Account Managers
DAN	[Kfz:D] Landkreis Lüchow-Dannenberg
DAO	disk at once
DAP	Directory Access Protocol
DASH	(hyphen) - (International Radiotelephony Spelling Alphabet)
DAT	digital audio tape
DAT	dynamic acceleration technology
DAU	Dümmster anzunehmender User
DAU	[Kfz:D] Landkreis Daun
DAU	[Kfz:D] Landkreis Vulkaneifel
DAV	Distributed Authoring and Versioning
DB	database
DB	Deutsche Bahn
DB	[Kfz:D] Dienstfahrzeuge der Deutschen Bundesbahn
DBA	database administrator
DBA	dynamic bandwidth allocation
DBB	data bus buffer
DBC	design by contract
DBCS	double-byte character set
DBDDHKP	doof bleibt doof, da helfen keine Pillen
DBEYR	don't believe everything you read
DBL	dynamic buffer limiting
DBMS	database management system
DBR	[Kfz:D] Altkreis Bad Doberan im Landkreis Rostock
DBS	database server
DC	data centre
DC	device control
DC	direct current
DC	disconnect
DC1	U+0011 ␑ DEVICE CONTROL ONE
DC2	U+0012 ␒ DEVICE CONTROL TWO
DC3	U+0013 ␓ DEVICE CONTROL THREE
DC4	U+0014 ␔ DEVICE CONTROL FOUR
DCC	direct cable connect
DCC	Direct Client-to-Client
DCD	data carrier detect
DCE	data control equipment
DCE	distributed computing environment
DCOM	distributed component object model
DCOP	Desktop COmmunication Protocol
DCS	data collection systems
DCS	U+0090 DEVICE CONTROL STRING
DCT	discrete cosine transform
DCU	data cache unit
DD	Debian developer
DD	[ccTLD] Deutsche Demokratische Republik
DD	[Kfz:D] Landkreis Dresden
DDC	display data channel
DDE	dynamic data exchange
DDG	duck duck go (search engine)
DDK	device driver kit
DDL	data description language
DDP	Debian Documentation Project
DDPO	Debian developer's package overview -- http://qa.debian.org/developer.php
DDR	Debian Developer's Reference
DDR	double data rate
DDR	[Kfz] Deutsche Demokratische Republik (veraltet)
DDS	direct digital sound
DDS	Doctor of Dental Surgery
DDTT	don't do that then
DDWG	digital display working group
DE	debugging extensions
DE	desktop environment
DE	[ccTLD] Deutschland
DE	[HP] Death Eater
DE	[Kfz:D] kreisfreie Stadt Dessau-Roßlau
DEA	data encryption algorithm
DEBILIAN	ancient GNU/Linux distribution, nearly forgotten
DEBILLIAN	ancient GNU/Linux distribution, nearly forgotten
DECIMAL	(decimal point) . (International Radiotelephony Spelling Alphabet)
DEG	[Kfz:D] Landkreis Deggendorf
DEK	data encryption key
DEL	U+007F ␡ DELETE
DEL	[Kfz:D] kreisfreie Stadt Delmenhorst
DELTA	D (International Radiotelephony Spelling Alphabet)
DEP	data execution prevention
DER	distinguished encoding rules
DES	Data Encryption Standard
DEV	Diodenerdwahlverfahren
DF	don't fragment
DFA	deterministic finite automaton
DFC	data flow control
DFDC	[gc] Danke für den Cache (TFTC)
DFDD	[gc] Danke für die Dose (TFTC)
DFS	depth first search
DFS	distributed file system
DFSG	Debian Free Software Guidelines
DFT	diagnostic function test
DFT	discrete Fourier transformation
DFÜ	Datenfernübertragung
DGAS	don't give a shit
DGF	das große Fressen
DGF	[Kfz:D] Landkreis Dingolfing-Landau
DGL	data generation language
DH	Diffie-Hellman
DH	[HP] Deathly Hallows
DH	[Kfz:D] Landkreis Grafschaft Diepholz
DHCP	Dynamic Host Configuration Protocol
DHL	da haste Lauferei
DHL	Dauert halt länger
DHS	Department of Homeland Security (USA)
DI	destination index
DI	[Kfz:D] Landkreis Dieburg
DIAFYO	did I ask for your opinion?
DIB	device-independent bitmap
DIFS	distributed inter-frame space
DIL	[Kfz:D] Dillkreis
DIMM	dual inline memory module
DIN	[Kfz:D] Kreis Dinslaken
DIRT	design in real time
DIY	do it yourself
DIYF	DuckDuckGo is your friend
DIZ	[Kfz:D] Unterlahnkreis
DJ	[ccTLD] Dschibuti
DJB	Dan J Bernstein -- http://cr.yp.to/
DJI	[Kfz] Dschibuti
DK	[ccTLD] Dänemark
DK	[Kfz] Dänemark
DKB	[Kfz:D] Landkreis Dinkelsbühl
DKDC	don't know, don't care
DKIM	DomainKeys Identified Mail
DL	diode logic
DL	download
DL	[Kfz:D] Landkreis Döbeln
DLE	U+0010 ␐ DATA LINK ESCAPE
DLG	[Kfz:D] Landkreis Dillingen an der Donau
DLL	dynamic link library (shared object)
DM	Deutsche Mark
DM	[ccTLD] Dominica
DM	[Kfz:D] Landkreis Demmin
DM	[Kfz:D] Teile des Landkreises Demmin im Landkreis Mecklenburgische Seenplatte
DMA	direct memory access
DMCA	(USA) digital milennium copyright act
DMCA	don't make content accessible
DMFS	[dental] decayed/missing/filled surfaces (lowercase for first dentition)
DMFT	[dental] decayed/missing/filled teeth (lowercase for first dentition)
DMI	desktop management interface
DMS	document management system
DMT	discrete multitone modulation
DMUP	Debian Machine Usage Policy
DMZ	demilitarised zone
DN	[Kfz:D] Kreis Düren
DNARD	Digital network appliance reference design
DND	do not disturb
DNF	[gc] did not find
DNL	delete (until) new line
DNS	Desoxyribonukleinsäure
DNS	Domain Name System
DO	[ccTLD] Dominikanische Republik
DO	[Kfz:D] kreisfreie Stadt Dortmund
DOA	dead on arrival
DOCH	German for "yes" answering "you don't ..., do you?"
DOE	distributed object environment
DOF	data over fibre
DOM	document object model
DOM	[Kfz] Dominikanische Republik
DON	[Kfz:D] Landkreis Donau-Ries
DON	[Kfz:D] Landkreis Donauwörth
DORA	D (deutsches Funkalphabet)
DOS	denial of service
DOS	Disc Operating System
DPC	deferred procedure call
DPCM	differential pulse code modulation
DPD	dead peer detection
DPD	Deutscher Paketdienst
DPI	deep packet inspection
DPI	dots per inch
DPKG	Debian Package Manager
DPL	Debian Project Leader
DPL	descriptor privilege level
DPST	display power savings technology
DRAM	dynamic random access memory
DRI	direct rendering infrastructure
DRM	digital restriction management
DRM	digital rights management
DRM	Digitale Rechte-Minderung
DRM	direct rendering module
DRRS	display refresh rate switching
DRY	don't repeat yourself
DS	data segment
DS	debug store
DS	[Kfz:D] Landkreis Donaueschingen
DS9	Star Trek: Deep Space Nine
DSA	Debian Security Advisory
DSA	Debian Systems Administration
DSB	Danske Statsbaner
DSB	double-sideband modulation
DSDT	differentiated system descriptor table
DSL	digital subscriber line
DSL	domain specific language
DSLAC	DSL Access Concentrator
DSLAM	digital subscriber line access multiplexer
DSLR	digital single-lens reflex camera
DSN	delivery status notification
DSO	dynamic shared object
DSP	digital signal processor
DSSS	direct sequence spread spectrum
DST	daylife sucking time
DST	daylight saving time
DSTM	don't shoot the messenger
DT	[Kfz:D] Kreis Detmold
DT	[Kfz:D] Kreis Lippe
DTD	document type definition
DTE	data terminal equipment
DTE	dumb terminal emulator
DTL	diode-transistor logic
DTMF	Dual Tone Multifrequency
DTRT	do the right thing
DTS	digital thermal sensor
DTST	did the same thing
DTWT	do the wrong thing
DU	[Kfz:D] kreisfreie Stadt Duisburg
DUD	[Kfz:D] Landkreis Duderstadt
DUP	Data User Part
DUP	duplicate
DUT	device under test
DVB	digital video broadcasting
DVB-C	digital video broadcasting over cable
DVB-S	digital video broadcasting over satellite
DVB-T	digital video broadcasting over terrestrial stations
DVCS	distributed version control system
DVD	digital versatile disc
DVFS	dynamic voltage and frequency scaling
DVI	digital visual interface
DVR	digital video recorder
DW	[Kfz:D] Landkreis Dippoldiswalde
DW	[Kfz:D] Weißeritzkreis
DWIM	do what I mean
DWIW	do what I want
DWN	Debian Weekly News
DWWIM	Du weißt, was ich meine (rel. DWIM)
DWYW	do what you want
DWZ	dat wil zeggen?
DWZ	Deutsche Wertungszahl (bei Schach)
DX	data register
DY	[Kfz] Dahomey (veraltet)
DYK	do you know?
DZ	[ccTLD] Algerien
DZ	[Kfz:D] Landkreis Delitzsch
DZ	[Kfz] Algerien
DÜW	[Kfz:D] Landkreis Bad Dürkheim
E	2.718281828459045235360287471352662497757…
E	[Kfz:D] kreisfreie Stadt Essen
E	[Kfz] Spanien
E-XER	extended XML encoding rules
E.G.	exempli gratia (for example)
E2BIG	(#7) Argument list too long
EA	[Kfz:D] kreisfreie Stadt Eisenach
EA	[Kfz] Britisch-Ostafrika (veraltet)
EABI	embedded-application binary interface
EACCES	(#13) Permission denied
EADDRINUSE	(#48) Address already in use
EADDRNOTAVAIL	(#49) Can't assign requested address
EAFNOSUPPORT	(#47) Address family not supported by protocol family
EAGAIN	(#35) Resource temporarily unavailable
EAK	[Kfz] Kenia
EALREADY	(#37) Operation already in progress
EAN	[Kfz] Njassaland (veraltet)
EAP	Extensible Authentication Protocol
EAR	Java™ Enterprise Archive (collection of JAR, WAR, RAR files and EJBs)
EAT	[Kfz] Tansania
EAU	[Kfz] Uganda
EAUTH	(#80) Authentication error
EAZ	[Kfz] Sansibar (veraltet)
EB	[Kfz:D] Landkreis Eilenburg
EBADF	(#9) Bad file descriptor
EBADMSG	(#87) Bad message
EBADRPC	(#72) RPC struct is bad
EBCDIC	Extended Binary Coded Decimal Interchange Code (cf. BCD)
EBE	[Kfz:D] Landkreis Ebersberg
EBN	[Kfz:D] Landkreis Ebern
EBR	extended boot record
EBS	[Kfz:D] Landkreis Ebermannstadt
EBUSY	(#16) Device busy
EC	Eurocity
EC	European Commission
EC	[ccTLD] Ecuador
EC	[Kfz] Ecuador
ECANCELED	(#86) Operation canceled
ECC	error correction code
ECCM	electronic counter-countermeasures (e.g. something against jamming)
ECHILD	(#10) No child processes
ECHO	E (International Radiotelephony Spelling Alphabet)
ECK	[Kfz:D] Landkreis Eckernförde
ECL	emitter-coupled logic
ECLIPSE	Eight Cores? Look, it performs slow everywhere!
ECLIPSE	Java's answer to EMACS
ECM	electronic countermeasures (often: jammer)
ECN	explicit congestion notification
ECONNABORTED	(#53) Software caused connection abort
ECONNREFUSED	(#61) Connection refused
ECONNRESET	(#54) Connection reset by peer
ECP	enhanced capability port
ECR	electronic cash register
ECS	enhanced chip set
ECS	extended configuration space
ECSD	HSCSD over EDGE
ED	edition
ED	editor
ED	[Kfz:D] Landkreis Erding
EDAT	enhanced dynamic acceleration technology
EDEADLK	(#11) Resource deadlock avoided
EDESTADDRREQ	(#39) Destination address required
EDGE	Enhanced Data rates for GSM Evolution
EDGE	Enhanced GPRS (EGPRS)
EDGE	explicit data graph execution
EDGE	IMT Single Carrier (IMT-SC)
EDID	extended display identification data
EDO	extended data out
EDOM	(#33) Numerical argument out of domain
EDQUOT	(#69) Disk quota exceeded
EDS	electronical data sheet
EDS	eternal downward spiral
EDU	[sTLD] educational (Bildungseinrichtungen)
EDV	Elektronische Datenverarbeitung
EE	[ccTLD] Estland
EE	[Kfz:D] Landkreis Elbe-Elster
EEPROM	electrically erasable programmable read only memory
EES	Execution Environment Service
EEXIST	(#17) File exists
EF	[Kfz:D] Landkreis Erfurt
EF	[Schule DE] Einführungsphase (10. Klasse Gymnasium nach G8)
EFAULT	(#14) Bad address
EFBIG	(#27) File too large
EFI	extensible firmware interface
EFL	emitter follower logic
EFM	eight to fourteen modulation
EFT	electronic funds transfer
EFTYPE	(#79) Inappropriate file type or format
EG	Europäische Gemeinschaft (now EU)
EG	evil grin
EG	exempli gratia (for example)
EG	[ccTLD] Ägypten
EG	[Kfz:D] Landkreis Eggenfelden
EGA	enhanced graphics adapter
EGID	effective group ID
EGNOS	European Geostationary Navigation Overlay Service
EGP	exterior gateway protocol
EGPRS	Enhanced GPRS (GPRS over EDGE)
EH	extension header
EH	[ccTLD] Westsahara
EH	[Kfz:D] Landkreis Eisenhüttenstadt
EHI	[Kfz:D] Landkreis Ehingen
EHOSTDOWN	(#64) Host is down
EHOSTUNREACH	(#65) No route to host
EI	[Kfz:D] Landkreis Eichstätt
EIC	[Kfz:D] Landkreis Eichsfeld
EIDE	enchanced IDE
EIDRM	(#88) Identifier removed
EIE	enough is enough
EIH	[Kfz:D] Landkreis Eichstätt
EIL	[Kfz:D] Landkreis Eisleben
EILSEQ	(#84) Illegal byte sequence
EIN	[Kfz:D] Landkreis Einbeck
EINPROGRESS	(#36) Operation now in progress
EINTR	(#4) Interrupted system call
EINVAL	(#22) Invalid argument
EIO	(#5) Input/output error
EIPSEC	(#82) IPsec processing failure
EIR	[Kfz] Irland (veraltet)
EIS	[Kfz:D] Landkreis Eisenberg
EISA	extended industry standard architecture
EISCONN	(#56) Socket is already connected
EISDIR	(#21) Is a directory
EK	[Schule DE] Erweiterungskurs (gymnasialer Zweig der Gesamtschule)
EL	[Kfz:D] Landkreis Emsland
ELAST	(#99) (must be equal to largest errno)
ELF	endless long to wait for
ELF	executable and linking format
ELF	extrem langsames Format
ELOOP	(#62) Too many levels of symbolic links
ELS	entry level system
ELWMS	Eierlegende Wollmilchsau
EM	U+0019 ␙ END OF MEDIUM
EM	[Kfz:D] Landkreis Emmendingen
EMACS	Easily Mangles Aborts Crashes And Stupifies
EMACS	Editor MACroS
EMACS	Eight Megabytes And Continuously Swapping
EMACS	Emacs Makes A Computer Slow
EMACS	Escape Meta Alt Ctrl Shift
EMACS	Eventually Munches All Computer Storage
EMD	[Kfz:D] kreisfreie Stadt Emden
EMFILE	(#24) Too many open files
EMI	electro-magnetic interference
EMIL	E (deutsches Funkalphabet)
EMLINK	(#31) Too many links
EMP	electro-magnetic pulse
EMR	electro-magnetic radiation
EMS	[Kfz:D] Rhein-Lahn-Kreis, Stadt Lahnstein
EMSG	email message
EMSGSIZE	(#40) Message too long
EMULTIHOP	(#89) (reserved)
EN	[Kfz:D] Ennepe-Ruhr-Kreis
ENAMETOOLONG	(#63) File name too long
ENEEDAUTH	(#81) Need authenticator
ENETDOWN	(#50) Network is down
ENETRESET	(#52) Network dropped connection on reset
ENETUNREACH	(#51) Network is unreachable
ENFILE	(#23) Too many open files in system
ENOATTR	(#83) Attribute not found
ENOBUFS	(#55) No buffer space available
ENOCOFFEE	(#85) Programmer needs more coffee
ENODATA	(#90) No message available on STREAM head read queue
ENODEV	(#19) Operation not supported by device
ENOENT	(#2) No such file or directory
ENOEXEC	(#8) Exec format error
ENOLCK	(#77) No locks available
ENOLINK	(#91) (reserved)
ENOMEM	(#12) Cannot allocate memory
ENOMSG	(#92) No message of desired type
ENOPROTOOPT	(#42) Protocol not available
ENOSPC	(#28) No space left on device
ENOSR	(#93) No STREAM resources
ENOSTR	(#94) Not a STREAM
ENOSYS	(#78) Function not implemented
ENOTBLK	(#15) Block device required
ENOTCONN	(#57) Socket is not connected
ENOTDIR	(#20) Not a directory
ENOTEMPTY	(#66) Directory not empty
ENOTRECOVERABLE	(#95) State not recoverable
ENOTSOCK	(#38) Socket operation on non-socket
ENOTSUP	(=EOPNOTSUPP) Operation not supported
ENOTTY	(#25) Inappropriate ioctl for device
ENQ	U+0005 ␅ ENQUIRY
ENT	Star Trek: Enterprise
ENXIO	(#6) Device not configured
EOB	end of business [day]
EOD	end of day
EOD	end of discussion
EOF	end of file
EOI	end of interrupt
EOL	end of life
EOL	end of line
EOM	end of message
EOPNOTSUPP	(#45) Operation not supported
EOS	end of story
EOT	U+0004 ␄ END OF TRANSMISSION
EOVERFLOW	(#96) Value too large to be stored in data type
EOWNERDEAD	(#97) Previous owner died
EPA	End of Protected Area (U+0097)
EPA	U+0097 END OF GUARDED AREA
EPERM	(#1) Operation not permitted
EPFNOSUPPORT	(#46) Protocol family not supported
EPIC	explicitly parallel instruction computing
EPIPE	(#32) Broken pipe
EPP	enhanced parallel port
EPRML	extended partial response, maximum likelihood
EPROCLIM	(#67) Too many processes
EPROCUNAVAIL	(#76) Bad procedure for program
EPROGMISMATCH	(#75) Program version wrong
EPROGUNAVAIL	(#74) RPC prog. not avail
EPROM	erasable programmable read only memory
EPROTO	(#98) Protocol error
EPROTONOSUPPORT	(#43) Protocol not supported
EPROTOTYPE	(#41) Protocol wrong type for socket
EPS	Encapsulated Postscript
EQ	[Kfz] Ecuador (veraltet)
ER	[ccTLD] Eritrea
ER	[Kfz:D] Landkreis Erlangen-Höchstadt
ER	[Kfz] Eritrea
ERANGE	(#34) Result too large
ERB	[Kfz:D] Landkreis Erbach
ERB	[Kfz:D] Odenwaldkreis
ERD	emergency recovery disk
ERE	extended regular expression
EREMOTE	(#71) Too many levels of remote in path
ERH	[Kfz:D] Landkreis Erlangen-Höchstadt
ERK	[Kfz:D] Kreis Erkelenz
EROFS	(#30) Read-only file system
ERP	enterprise resource planning
ERPCMISMATCH	(#73) RPC version wrong
ERZ	[Kfz:D] Erzgebirgskreis
ES	extra segment
ES	[ccTLD] Spanien
ES	[Kfz:D] Landkreis Eßlingen
ES	[Kfz] El Salvador
ESA	U+0087 END OF SELECTED AREA
ESA	[Kfz:D] Landkreis Eisenach
ESB	[Kfz:D] Landkreis Eschenbach in der Oberpfalz
ESC	U+001B ␛ ESCAPE
ESCON	Enterprise Systems Connection
ESDRAM	enhanced synchronous dynamic random access memory
ESHUTDOWN	(#58) Can't send after socket shutdown
ESOCKTNOSUPPORT	(#44) Socket type not supported
ESPIPE	(#29) Illegal seek
ESR	Eric Steven Raymond -- http://www.catb.org/~esr/
ESRCH	(#3) No such process
ESS	electronic switching system
EST	enhanced speedstep
EST	[Kfz] Estland
ESTALE	(#70) Stale NFS file handle
ESW	[Kfz:D] Landkreis Eschwege
ESW	[Kfz:D] Werra-Meißner-Kreis
ESZETT	ß (deutsches Funkalphabet)
ET	[ccTLD] Äthiopien
ET	[Kfz] Ägypten
ETA	edited to add
ETA	estimated time of arrival (usually infinite)
ETB	U+0017 ␗ END OF TRANSMISSION BLOCK
ETC	et cetera (and the rest, and so on)
ETH	[Kfz] Äthiopien
ETIME	(#99) STREAM ioctl timeout
ETIMEDOUT	(#60) Operation timed out
ETL	extract, transform, load
ETLA	extended three letter acronym
ETOOMANYREFS	(#59) Too many references: can't splice
ETR	early to rise
ETRS89	European Terrestrial Reference System of 1989 (GRS80 reference ellipsoid)
ETSI	European Telecommunications Standards Institute
ETX	U+0003 ␃ END OF TEXT
ETXTBSY	(#26) Text file busy
EU	European Union
EU	execution unit
EU	[ccTLD] Europäische Union
EU	[Kfz:D] Kreis Euskirchen
EUC	Extended Unix Code
EUGH	Europäischer Gerichtshof
EUGRIDPMA	EUGridPMA, the European Grid Authentication Policy Management Authority in e-Science
EUID	effective user ID
EULA	end user licence agreement
EUSERS	(#68) Too many users
EUT	[Kfz:D] Kreis Eutin
EVA	[Schule DE] Eigenverantwortliche Arbeit (auch Präsenz-EVA)
EW	[Kfz:D] Landkreis Eberswalde
EW	[Kfz] Estland (veraltet)
EWAG	experienced wild-ass guess
EWE	Epilogue? What Epilogue? (usually in HP context)
EWOULDBLOCK	(=EAGAIN) Operation would block
EXDEV	(#18) Cross-device link
F	false (boolean 0)
F	[Kfz:D] kreisfreie Stadt Frankfurt am Main
F	[Kfz] Frankreich
F9	fine
FACK	forward ACKnowledgement (TCP)
FACK	Full ACK!
FAL	[Kfz:D] Landkreis Soltau-Fallingbostel
FAQ	frequently asked question
FAT	file allocation table
FB	[Kfz:D] Landkreis Friedberg in Hessen
FB	[Kfz:D] Wetteraukreis
FBI	Federal Bureau of Investigation (USA)
FBOW	for better or worse
FBRAM	frame buffer random access memory
FC	fan control
FC	favourably considered
FC	fibre channel
FC	frame control
FCFS	first come first served
FCL	fiber channel loop
FCOL	for crying out loud
FCS	frame check sequence
FD	file descriptor
FD	floppy disc
FD	[Kfz:D] Landkreis Fulda
FDA	Federal Drug Administration
FDA	Für den Arsch
FDB	[Kfz:D] Landkreis Friedberg in Bayern
FDC	floppy disk controller
FDD	floppy disk drive
FDDI	fiber distributed data interface
FDE	full disk encryption
FDIK	Fick' Dich ins Knie
FDIK	Volker Birk (VB)
FDS	[Kfz:D] Landkreis Freudenstadt
FEA	finite element analysis
FEAR	false evidence appearing real
FEC	forward error correction
FEFE	Felix von Leitner -- http://www.fefe.de/
FET	field-effect transistor
FEU	[Kfz:D] Landkreis Feuchtwangen
FF	Form Feed (U+000C)
FF	[Kfz:D] kreisfreie Stadt Frankfurt (Oder)
FFB	[Kfz:D] Landkreis Fürstenfeldbruck
FFH	functional fixed hardware
FFI	foreign function interface
FFM	focus follows mouse
FFN	FanFiction.Net
FFS	Fast File System
FFS	Ferrovie federali svizzere (SBB)
FFS	find first set (bit)
FFS	for fuck's sake
FFS	free for shipping
FFT	fast Fourier transform
FFTFT	feel free to fix that
FG	floating gate
FG	[Kfz:D] Landkreis Freiberg
FG	[Kfz:D] Landkreis Mittelsachsen
FGG	For the Greater Good
FH	[Kfz:D] Main-Taunus-Kreis
FHOG	first hit on google
FHSS	frequency hop spread spectrum
FI	[ccTLD] Finnland
FI	[Kfz:D] Landkreis Finsterwalde
FIAT	Fehler in allen Teilen
FIAT	Feuer in allen Töpfen
FICON	Fiber Connectivity
FID	frequency identifier
FIF	[Kfz] Französisch-Indien (veraltet)
FIFO	first in, first out
FIGJAM	fuck I'm good, just ask me
FIIK	fuck/fucked if I know
FIIR	fuck/fucked if I recall
FIIR	fuck/fucked if I remember
FILO	first in, last out
FIN	[Kfz] Finnland
FIR	fast infrared
FITB	fill in the blank
FJ	[ccTLD] Fidschi
FJI	[Kfz] Fidschi
FK	[ccTLD] Falklandinseln
FK	[Schule DE] Fachkonferenz
FKA	formerly known as
FKB	[Kfz:D] Landkreis Frankenberg
FL	[Kfz:D] Kreis Flensburg-Land
FL	[Kfz] Liechtenstein
FLOPS	floating [point] operations per second
FLOSS	(dental care product)
FLOSS	free / libre / open source software (deprecated acronym, use OSS)
FLÖ	[Kfz:D] Landkreis Flöha
FM	frequency modulation
FM	fucking magic
FM	[ccTLD] Mikronesien
FM	[Kfz] Malaysia (veraltet)
FML	fuck my life
FMR	false match rate
FMT	Facility Management Technology
FN	[Kfz:D] Bodenseekreis
FNO	for nerds only
FNO	from now on
FNORD	fnord
FNORD	For No Other Reason Dischord
FNORD	typographic representation of disinformation or irrelevant information intending to misdirect, with the implication of a worldwide conspiracy
FNORD	webserver by Fefe
FO	[ccTLD] Färöer
FO	[Kfz:D] Landkreis Forchheim
FO	[Kfz] Färöer
FOAD	fall over and die
FOAD	fuck off and die
FOC	free of charge
FOR	[Kfz:D] Landkreis Forst
FORD	er fuhr ford und kam nie wieder
FORD	fix or repair daily
FORD	für Ossis reicht det
FOS	full of shit
FOSDEM	Free and open source software developers’ European meeting
FOSS	free / open source software
FOTW	fun of the week
FOXTROT	F (International Radiotelephony Spelling Alphabet)
FPGA	field programmable gate array
FPM	fast page mode
FPOS	Financial Point of Sale
FPOS	First Person On Scene (first responders training)
FPOS	Food Point of Sale (restaurant industry)
FPOS	Fort Pierce Orchid Society (Ft. Pierce, Florida)
FPOS	Fucking Piece of Shit
FPOS	Future Point of Sale
FPR	floating point register
FPS	first person shooter
FPS	frames per second
FPU	Floating Point Unit
FQDN	fully qualified domain name
FR	[ccTLD] Frankreich
FR	[Kfz:D] Stadtkreis Freiburg im Breisgau und Landkreis Breisgau-Hochschwarzwald
FR	[Kfz] Färöer (veraltet)
FREE	[altTLD] free (frei: strikt nichtkommerzielles Internet)
FREEBSD	most 1337 open source operating system -- http://www.freebsd.org/
FREEMINT	see MiNT
FRG	[Kfz:D] Landkreis Freyung-Grafenau
FRI	[Kfz:D] Landkreis Friesland
FRIEDRICH	F (deutsches Funkalphabet)
FRR	false rejection rate
FRU	field replaceable unit
FRW	[Kfz:D] Landkreis Bad Freienwalde
FS	File Separator (U+001C)
FS	file system
FS	U+001C ␜ INFORMATION SEPARATOR FOUR
FS	[Kfz:D] Landkreis Freising
FS	[Kfz:D] Stadt Moosburg an der Isar im Landkreis Freising
FSB	front side bus
FSCK	file system check
FSCK	fuck
FSDO	for some definition of
FSF	Free Software Foundation -- http://www.fsf.org/ http://www.fsf-europe.org/
FSK	Freiwillige Selbstkontrolle
FSK	frequency shift keying
FSM	(see http://en.wikipedia.org/wiki/Flying_Spaghetti_Monster)
FSM	finite-state machine
FSM	[Kfz] Mikronesien
FST	freenode Standard Time (just UTC)
FSVO	for sane values of
FSVO	for some value of
FT	[Kfz:D] Landkreis Frankenthal (Pfalz)
FTA	fault tree analysis
FTBFS	fails to build from source
FTBFS	failure to build from source
FTF	[gc] first to find
FTFA	from the fucking article
FTFM	fuck the fuckin' manual!
FTFY	fixed that for you
FTHOI	for the heck of it
FTHOI	for the hell of it
FTL	faster than light
FTL	flash translation layer
FTL	for the loss
FTL	[gc] first to log (when you beat FTF on the log - lame)
FTL	[Kfz:D] Landkreis Freital
FTMFW	for the motherfucking win
FTP	File Transfer Protocol (needs to die)
FTPS	File Transfer Protocol, SSL secured
FTS	fuck that shit
FTTT	from time to time
FTW	for the win
FTW	forever two wheels
FTW	fuck that works
FTW	fuck the world
FU	fuck you
FUBAR	fucked up beyond all recognition
FUD	fear, uncertainty and doubt
FUQ	frequently unanswered questions
FUR	[altTLD] Furry
FUS	fast user switching
FUSE	filesystem in userspace
FUTHARK	(runic Alphabet)
FW	[Kfz:D] Landkreis Fürstenwalde
FWH	firmware hub
FWIW	for what it's worth
FWS	folding white space
FYEO	for your eyes only
FYI	for your information
FZ	[Kfz:D] Landkreis Fritzlar-Homberg
FÜ	[Kfz:D] kreisfreie Stadt und Landkreis Fürth
FÜS	[Kfz:D] Landkreis Füssen
G	grin
G	[Kfz:D] Landkreis Gera
G	[Kfz] Gabun
G	[Kfz] Guatemala (veraltet)
G/C	garbage collect
G/C	garbage collection
G2G	got to go
G2K	good to know
G8	[Schule DE] Gymnasialer Bildungszweig in 8 Schuljahren (Turbo-Abitur)
G9	[Schule DE] Gymnasialer Bildungszweig in 9 Schuljahren
GA	[ccTLD] Gabun
GA	[Kfz:D] Landkreis Gardelegen
GAC	get a clue
GAL	generic array logic
GAL	get a life
GAN	[Kfz:D] Landkreis Gandersheim
GAP	[Kfz:D] Landkreis Garmisch-Partenkirchen
GAS	generic address structure
GB	[ccTLD] Vereinigtes Königreich (auch .uk)
GB	[Kfz] Vereinigtes Königreich
GBA	[Kfz] Alderney
GBG	[Kfz] Guernsey
GBJ	[Kfz] Jersey
GBM	[Kfz] Isle of Man
GBTW	get back to work
GBY	[Kfz] Malta (veraltet)
GBZ	[Kfz] Gibraltar
GC	garbage collector
GC	[gc] gc.com listed geocache
GC	[gc] geocache
GC	[gc] geocoin (also used as common name for trackable items, cf. TB)
GC	[gc] The Frog Site (gc.com)
GC	[Kfz:D] Landkreis Chemnitzer Land
GC	[Kfz:D] Landkreis Glauchau
GCA	[Kfz] Guatemala
GCC	gcc can't compile
GCC	GNU C Compiler (old)
GCC	GNU Compiler Collection
GCC	Group Call Control
GCD	greatest common divisor (GGT)
GCR	group-coded recording
GD	[ccTLD] Grenada
GD	[Kfz:D] Landkreis Schwäbisch Gmünd
GDB	[Kfz:D] Landkreis Gadebusch
GDT	global descriptor table
GDW	genau dann, wenn (german; exactly iff)
GE	[ccTLD] Georgien
GE	[Kfz:D] kreisfreie Stadt Gelsenkirchen
GE	[Kfz] Georgien
GEEK	[altTLD] Geek-orientierte Seiten natürlicher Personen
GEL	[Kfz:D] Kreis Geldern
GEM	graphics environment manager
GEM	graphics execution manager
GEM	[Kfz:D] Landkreis Gemünden am Main
GEMA	Gesellschaft für musikalische Aufführungs- und mechanische Vervielfältigungsrechte
GENA	general event notification architecture
GEO	[Kfz:D] Landkreis Gerolzhofen
GEO	[Kfz] Georgien (veraltet)
GER	[Kfz:D] Landkreis Germersheim
GEZ	Gebühreneinzugszentrale (worse than Scientology)
GF	girlfriend
GF	[ccTLD] Französisch-Guayana
GF	[Kfz:D] Landkreis Gifhorn
GFU	good for you
GFX	graphics (card)
GFY	go fuck yourself
GFY	good for you
GG	good game
GG	[ccTLD] Guernsey
GG	[Kfz:D] Landkreis Groß-Gerau
GGS	Gehörschutzgleichrichter
GGT	ganz großes Tennis
GGT	größter gemeinsamer Teiler (GCD)
GGWP	good game, well played
GH	[ccTLD] Ghana
GH	[Kfz] Ghana
GHA	[Kfz:D] Landkreis Geithain
GHC	Glasgow Haskell compiler
GHC	[Kfz:D] Landkreis Gräfenhainichen
GHZ	GHz: Gigahertz (1'000'000'000 Hz)
GI	[ccTLD] Gibraltar
GI	[Kfz:D] Landkreis Gießen
GID	group identifier
GIDF	Google ist dein Freund (oder besser DDG)
GIF	graphics interchange format
GIGO	garbage in, garbage out
GILF	grandma i'd like to fuck
GIT	content addressable filesystem written by finnish study aborter
GIT	stupid content tracker
GIYF	Google is your friend (or rather, DDG)
GJ	good job
GK	Gauß-Krüger coordinate system (Potsdam-Datum, Bessel(BRD)/Krassowski(DDR)-Ellipsoid)
GK	[Kfz:D] Selfkantkreis Geilenkirchen-Heinsberg
GK	[Schule DE] Grundkurs
GL	good luck (see GL HF, HF)
GL	[ccTLD] Grönland
GL	[gc] GeoLutin, free trackable item (see also: TB)
GL	[Kfz:D] Rheinisch-Bergischer Kreis
GL HF	geek l33t hack forever
GL HF	gentoo linux: hack freedumbly
GL HF	gentoo linux: hack freely
GL HF	gentoo linux: half finished
GL HF	get a life: hack forever
GL HF	get a life: hack freebsd
GL HF	go liberate half-born fetuses
GL HF	go lick hairy females
GL HF	go lick hairy folksingers
GL HF	good luck, have fun [StarCraft]
GLA	[Kfz:D] kreisfreie Stadt Gladbeck
GLHF	good luck, have fun
GLONASS	Global National Satellite System
GLT	Gebäudeleittechnik
GLUE	[altTLD] OpenNIC-Projektarchitektur-Aufhängepunkt
GLWT	good luck with that
GM	[ccTLD] Gambia
GM	[Kfz:D] Oberbergischer Kreis
GMBH	Geh mir/mal Bier holen (german pun)
GMBH	Gesellschaft mit beschränkter Haftung (german/austrian/swiss)
GMCH	graphics and memory controller hub
GMM	GPRS Mobility Management
GMN	[Kfz:D] Landkreis Grimmen
GMTA	great minds think alike
GN	[ccTLD] Guinea
GN	[Kfz:D] Landkreis Gelnhausen
GN8	goodneight
GN8	gute Nacht
GND	ground
GNOME	some kind of small earthen animal
GNT	[Kfz:D] Landkreis Genthin
GNU	GNU's Not UNIX®
GOA	[Kfz:D] Landkreis Sankt Goar
GOF	[HP] Goblet of Fire
GOH	[Kfz:D] Landkreis Sankt Goarshausen
GOH	[Kfz:D] Loreleykreis
GOK	God only knows
GOLF	G (International Radiotelephony Spelling Alphabet)
GOPHER	[altTLD] Seiten, die das Gopher-Protokoll verwenden
GOT	global offset table
GOV	[sTLD] government (Regierungsorgane der USA)
GOWI	get on with it
GP	[ccTLD] Guadeloupe
GP	[Kfz:D] Landkreis Göppingen
GPE	general purpose event
GPF	general protection fault
GPG	GNU Privacy Guard (GnuPG, a PGP implementation)
GPIO	General Purpose I/O
GPL	GNU General Public License
GPR	general purpose register
GPRS	general packet radio service
GPS	generalised processor sharing
GPS	global positioning system
GPSR	GPSr = GPS receiver
GPT	GUID partition table
GPU	graphics processing unit
GQ	[ccTLD] Äquatorialguinea
GQ	[Kfz] Äquatorialguinea (nicht offiziell)
GR	golden ratio
GR	[ccTLD] Griechenland
GR	[Kfz:D] Landkreis Görlitz
GR	[Kfz:D] Niederschlesischer Oberlausitzkreis
GR	[Kfz] Griechenland
GR8	great
GRA	[Kfz:D] Landkreis Grafenau
GRE	generic routing encapsulation
GRH	[Kfz:D] Landkreis Riesa-Großenhain
GRI	[Kfz:D] Landkreis Griesbach im Rottal
GRM	[Kfz:D] Landkreis Grimma
GRM	[Kfz:D] Muldentalkreis
GRML	(Ausruf der Unzufriedenheit, z.B. mit dem Schicksal)
GRML	austrian GNU/Linux live distribution, contains MirOS bsd4grml
GRO	[Kfz] Grönland (veraltet)
GRS	[Kfz:D] Landkreis Gransee
GRS80	Geodetic Reference System of 1980
GRZ	[Kfz:D] Landkreis Greiz
GS	Group Separator (U+001D)
GS	U+001D ␝ INFORMATION SEPARATOR THREE
GS	[ccTLD] Südgeorgien und die Südlichen Sandwichinseln
GS	[Kfz:D] Landkreis Goslar
GSI	global system interrupt
GSM	Global System for Mobile Communications
GSM	GPRS Session Management
GSM	Groupe Spécial Mobile
GT	[ccTLD] Guatemala
GT	[Kfz:D] Kreis Gütersloh
GT	[Kfz] Guatemala
GTFO	get the fuck out
GTG	got to go
GTH	go to hell
GTH	[Kfz:D] Landkreis Gotha
GTLD	generic top-level domain
GTP	GPRS Tunneling Protocol
GTSY	glad to see you
GTSY	good to see you
GU	Gabelumschalter
GU	[ccTLD] Guam
GUB	[Kfz:D] Landkreis Guben
GUB	[Kfz] Guinea-Bissau
GUI	graphical user interface
GUI	[Kfz] Guinea (nicht offiziell)
GUID	globally unique identifier
GUMS	Grid User Management System
GUN	[Kfz:D] Landkreis Gunzenhausen
GUSTAV	G (deutsches Funkalphabet)
GUY	[Kfz] Guyana
GV	[Kfz:D] Kreis Grevenbroich
GVM	[Kfz:D] Landkreis Grevesmühlen
GW	[ccTLD] Guinea-Bissau
GW	[Kfz:D] Landkreis Greifswald
GWS	get well soon
GY	[ccTLD] Guyana
GZ	[gc] Ground Zero - the spot your GPSr takes you to the cache location
GZ	[Kfz:D] Landkreis Günzburg
GÖ	[Kfz:D] Landkreis Göttingen
GÜ	[Kfz:D] Altkreis Güstrow im Landkreis Rostock
H	[Kfz:D] Region Hannover
H	[Kfz] Ungarn
H8	hate
HA	high availability
HA	[Kfz:D] kreisfreie Stadt Hagen
HAB	[Kfz:D] Landkreis Hammelburg
HAL	hardware abstraction layer
HAL	[Kfz:D] kreisfreie Stadt Halle (Saale)
HAM	[Kfz:D] kreisfreie Stadt Hamm
HAND	have a nice day
HARQ	Hybrid Automatic Request
HAS	[Kfz:D] Landkreis Haßberge
HAS	[Kfz:D] Landkreis Haßfurt
HAT	hashed array tree
HAUFEN	Hauptschüler auf unterstem frei erreichbarem Niveau
HB	Bremen
HB	[Kfz:D] Hansestadt Bremen und kreisfreie Stadt Bremerhaven
HB	[Kfz:D] Senat und Bürgerschaft der Hansestadt Bremen
HBA	host bus adapter
HBCI	half correct banking interface
HBCI	hand codeded banking interface
HBCI	hardcore banking interface
HBCI	hopefully correct banking interface
HBCI	hopelessly catastrophic banking interface
HBCI	hopelessly corrupt banking interface
HBN	[Kfz:D] Landkreis Hildburghausen
HBP	[HP] Half-Blood Prince
HBS	[Kfz:D] Landkreis Halberstadt
HC	[Kfz:D] Landkreis Hainichen
HC	[Kfz:D] Landkreis Mittweida
HCF	halt and catch fire
HCH	[Kfz:D] Landkreis Hechingen
HCI	host controller interface
HCI	human-computer interaction
HCL	hardware compatibility list
HD	hard disc
HD	[Kfz:D] kreisfreie Stadt Heidelberg und Rhein-Neckar-Kreis
HDA	Heil den Asen (=OMG)
HDB	Heil Dir, Bruder
HDCP	high-bandwidth digital content protection
HDD	hard disc drive
HDH	[Kfz:D] Landkreis Heidenheim
HDL	hardware description language
HDL	[Kfz:D] Landkreis Haldensleben
HDTV	high-definition television (720p, 1080i, 1080p)
HDW	Heil den Wansen (=OMG)
HE	Hessen
HE	how embarrasing
HE	[Kfz:D] Landkreis Helmstedt
HEB	[Kfz:D] Landkreis Hersbruck
HEF	[Kfz:D] Landkreis Hersfeld-Rotenburg
HEI	[Kfz:D] Kreis (Norder)Dithmarschen
HEINRICH	H (deutsches Funkalphabet)
HEL	[Kfz:D] Hessen, Landesregierung und Landtag
HEPTA	seven-
HER	[Kfz:D] kreisfreie Stadt Herne
HET	[Kfz:D] Landkreis Hettstedt
HEXA	six-
HF	hardware floating point (Debian/armhf)
HF	have fun (see also: GL, GL HF)
HF	high frequency
HF	[Kfz:D] Kreis Herford
HFIW	HOLY FUCK IT WORKS
HFM	highest frequency mode
HG	[Kfz:D] Hochtaunuskreis
HG	[Kfz:D] Obertaunuskreis
HGN	[Kfz:D] Landkreis Hagenow
HGW	[Kfz:D] Hansestadt Greifswald im Landkreis Vorpommern-Greifswald
HH	Hamburg
HH	[Kfz:D] Hansestadt Hamburg
HH	[Kfz:D] Senat und Bürgerschaft der Freien und Hansestadt Hamburg
HHDD	hybrid hard disc drive
HHIS	hanging head in shame
HHM	[Kfz:D] Landkreis Hohenmölsen
HHOS	ha ha, only serious
HI	[Kfz:D] Landkreis Hildesheim-Marienburg
HICA	here it comes again
HID	human interface device
HIG	human interface guidelines
HIG	[Kfz:D] Landkreis Heiligenstadt
HIG	“let’s swap the order of MsgBox buttons from what most people expect to what some people think is better”
HIG	“oh, let’s hide all those options... that will only confuse the users”
HIP	[Kfz:D] Landkreis Hilpoltstein
HIPPO	highest paid person's opinion
HIRD	HURD of Interfaces Representing Depth
HK	[ccTLD] Hongkong
HK	[Kfz:D] Landkreis Heidekreis
HK	[Kfz] Hongkong
HKJ	[Kfz] Jordanien (veraltet)
HL	[Kfz:D] Hansestadt Lübeck
HLGK	[Schule DE] Hochleistungsgrundkurs (Grundkurs bei anspruchsvollem Lehrer)
HLL	high-level language
HM	[ccTLD] Heard und McDonaldinseln
HM	[Kfz:D] Landkreis Hameln-Pyrmont
HMA	high memory area
HMAC	hash-based message authentication code
HMI	human-machine interface
HMÜ	[Kfz:D] Landkreis Münden
HN	[ccTLD] Honduras
HN	[Kfz:D] Stadt- und Landkreis Heilbronn
HN	[Kfz] Honduras
HNO	Hals-Nasen-Ohrenarzt
HNY	happy new year
HO	[Kfz:D] kreisfreie Stadt und Landkreis Hof
HOAS	hold on a second
HOG	[Kfz:D] Landkreis Hofgeismar
HOH	[Kfz:D] Landkreis Hofheim in Unterfranken
HOL	[Kfz:D] Landkreis Holzminden
HOM	[Kfz:D] Landkreis Homburg
HOM	[Kfz:D] Saar-Pfalz-Kreis
HONK	Hauptschüler ohne nennenswerte Kenntnisse
HOOD	hierarchical object oriented design
HOP	High Octet Preset (U+0081)
HOR	[Kfz:D] Landkreis Horb
HOT	[Kfz:D] Landkreis Hohenstein-Ernstthal
HOTEL	H (International Radiotelephony Spelling Alphabet)
HP	Harry Potter
HP	Hewlett-Packard
HP	homepage
HP	[Kfz:D] Landkreis Bergstraße
HP:COS	Harry Potter and the Chamber of Secrets
HP:DH	Harry Potter and the Deathly Hallows
HP:GOF	Harry Potter and the Goblet of Fire
HP:HBP	Harry Potter and the Half-Blood Prince
HP:OOTP	Harry Potter and the Order of the Phœnix
HP:POA	Harry Potter and the Prisoner of Azkaban
HP:PS	Harry Potter and the Philosopher's Stone
HP:SS	(see HP:PS)
HPC	high performance computing
HPET	high precision event timer
HQ	Headquarters
HR	[ccTLD] Kroatien
HR	[Kfz:D] Schwalm-Eder-Kreis
HR	[Kfz] Kroatien
HRO	[Kfz:D] Hansestadt Rostock
HRZ	Hochschul-Rechenzentrum (cf. RZ)
HS	[Kfz:D] Kreis Heinsberg
HSCSD	High Speed Circuit Switched Data
HSDPA	High-Speed Downlink Packet Access
HSIW	HOLY SHIT IT WORKS
HSK	Hühner, Schweine, Kühe
HSK	[Kfz:D] Hochsauerlandkreis
HSPA	high speed packet access
HST	[Kfz:D] Hansestadt Stralsund im Landkreis Vorpommern-Rügen
HST	[Kfz:D] Landkreis Stralsund
HSUPA	High-Speed Uplink Packet Access
HT	Horizontal Tabulator (U+0009)
HT	hyper-threading
HT	U+0009 ␉ CHARACTER TABULATION
HT	[ccTLD] Haiti
HTC	hardware thermal control
HTCC	high temperature co-fired ceramic
HTH	hoffentlich tut's helfen
HTH	hope this helps
HTJ	Horizontal Tabulation With Justification (U+0089)
HTJ	U+0089 CHARACTER TABULATION WITH JUSTIFICATION
HTML	HyperText Markup Language
HTS	Horizontal Tabulation Set (U+0088)
HTS	U+0088 CHARACTER TABULATION SET
HTT	hyper-threading technology
HTTP	Hot Tits Transport Pr0nocol
HTTP	Hypertext Transfer Protocol
HTTPS	Hypertext Transfer Protocol, SSL secured
HU	[ccTLD] Ungarn
HU	[Kfz:D] Stadt Hanau im Main-Kinzig-Kreis
HURD	HIRD of Unix-Replacing Daemons
HURD	Hurd Users Relish Deviance
HURD	the GNU operating system kernel (herd of gnus)
HUS	[Kfz:D] Landkreis Husum
HV	[Kfz:D] Landkreis Havelberg
HV	[Kfz] Burkina Faso (veraltet)
HV	[Kfz] Obervolta (veraltet)
HVAC	high voltage alternating current (quasi was aus der steckdose kommt)
HVL	[Kfz:D] Landkreis Havelland
HVM	hardware virtual machine
HW	[Kfz:D] Kreis Halle (Westfalen)
HWI	[Kfz:D] Hansestadt Wismar im Landkreis Nordwestmecklenburg
HWRNG	hardware random number generator
HX	[Kfz:D] Kreis Höxter
HY	[Kfz:D] Hoyerswerda im Landkreis Bautzen
HZ	Hertz
HZ	[Kfz:D] Landkreis Harz
HZ	[Kfz:D] Landkreis Herzberg
HÖS	[Kfz:D] Landkreis Höchstadt an der Aisch
HÜN	[Kfz:D] Landkreis Hünfeld
I	[Kfz] Italien
I C	I see
I.E.	id est (it is, that is)
I/O	input / output
I2O	intelligent input/output
IA	information assurance
IAC	in any case
IAE	in any event
IANA	Internet Assigned Numbers Authority
IANADD	I am not a Debian Developer
IANAL	I am not a lawyer
IAW	in another window
IAWTC	I agree with this comment
IAY	I adore you
IB	I'm back
IBC	iterated block cipher
IBID	ibidem (in the same place)
IBM	Ich bin Müll
IBM	International Business Machines
IBS	instruction based sampling
IBTD	I beg to differ
IBTD	in before the delete (web fora)
IC	I see
IC	integrated circuit
IC	Intercity
ICA	independent computer architecture
ICANN	(also jokingly: ICAN't)
ICANN	Internet Corporation for Assigned Names and Numbers
ICB	Internet Citizen's Band
ICBW	I could be wrong
ICBW	It could be worse
ICCL	I couldn't care less
ICD	International statistical Classification of Diseases and related health problems
ICE	in-circuit emulator
ICE	Intercity-Expreß
ICE	internal compiler error
ICFP	International Conference on Functional Programming
ICH	I/O controller hub
ICMP	Internet Control Message Protocol
ICO	icon (bitmap file format)
ICT	information and communications technology
ICUR	I see you are
ICW	initialisation command word
ID	idem (in the same place)
ID	identification (passport)
ID	identifier
ID	[ccTLD] Indonesien
IDA	I (deutsches Funkalphabet)
IDA	Intel dynamic acceleration
IDC	I don't care
IDD	inderdaad (dutch; indeed)
IDE	integrated development environment
IDE	integrated drive electronics
IDEA	International Data Encryption Algorithm
IDFD	in-der-fucking-daad (cf. IDD)
IDGI	I don't get it
IDGW	in a good way (?)
IDI	I doubt it
IDK	I don't know
IDPS	intrusion detection [and] prevention system
IDRC	I don't really care
IDRP	inter-domain routing protocol
IDS	intrusion detection system
IDT	interrupt descriptor table
IDTS	I don't think so
IDTT	I drink to that
IE	id est (it is, that is)
IE	Microsoft Internet Explorer
IE	[ccTLD] Irland
IEC	International Electrotechnical Commission
IEEE	Institute of Electrical and Electronics Engineers
IERS	International Earth Rotation and Reference Systems Service
IESG	Internet Engineering Steering Group
IETF	Internet Engineering Task Force
IF	interface
IF	intermediate frequency
IFCM	isochronous flow control mode
IFF	Interchange File Format
IGB	[Kfz:D] Stadt St. Ingbert im Saar-Pfalz-Kreis
IGD	Internet gateway device
IGMP	Internet Group Management Protocol
IGP	Interior Gateway Protocol
IGTF	International Grid Trust Federation
IHAFC	I haven't a fucking clue
IHBW	I have been wrong
IHNFC	I have no fucking clue
IHV	independent hardware vendor
IIANM	if I am not mistaken
IINM	if I'm not mistaken
IIRC	if I recall correctly
IIRC	if I remember correctly
IIUC	if I understand correctly
IK	[Kfz:D] Ilm-Kreis
IKE	internet key exchange
IKWYM	I know what you mean
IL	[ccTLD] Israel
IL	[Kfz:D] Landkreis Ilmenau
IL	[Kfz] Israel
ILBM	Interleaved Bitmap (IFF)
ILL	[Kfz:D] Landkreis Illertissen
ILM	internal loopback mode
ILP	instruction level parallelism
ILU	I love you
ILY	I love you
IM	instant messaging
IM	[ccTLD] Isle of Man
IM	[Kfz] Isle of Man (veraltet)
IMAO	in my arrogant opinion
IMAP	Internet Message Access Protocol
IMBO	in my biased opinion
IMC	integrated memory controller
IMCO	in my considered opinion
IMCR	interrupt mode configuration register
IMHO	in my humble opinion
IMNSHO	in my not so humble opinion
IMO	in my opinion
IMR	interrupt mask register
IMS	information management system
IMT-SC	IMT Single Carrier = EDGE
IN	[ccTLD] Indien
IN	[Kfz:D] Landkreis Ingolstadt
IN	[Kfz] Indonesien (veraltet)
IN	[Kfz] Niederländische Antillen (veraltet)
INCITS	InterNational Committee for Information Technology Standards
IND	Index (U+0084)
IND	[Kfz] Indien
INDIA	I (International Radiotelephony Spelling Alphabet)
INDY	[altTLD] Unabhängige Informationen, Medien und Kunst
INFO	[uTLD] information
ING	[altTLD] ?
INPO	in no particular order
INRIA	National Institute for Research in Computer Science and Control
INSN	instruction
INT	[sTLD] international (multinationale Organisationen)
IO	input/output
IO	[ccTLD] Britisches Territorium im Indischen Ozean
IOCCC	International Obfuscated C Code Contest
IOCTL	input/output control
IOMMU	input/output memory management unit
IOPS	I/O Operations per Second
IOU	I owe you (debt)
IOW	in other words
IP	intellectual property
IP	Internet Protocol (IPv6)
IP	Legacy IP (IPv4)
IPC	interprocess communication
IPE	integrated programming environment
IPI	interprocessor interrupt
IPL	IBM Public License
IPL	Information Processing Language
IPL	Initial Program Load
IPL	Interrupt priority level
IPMI	Intelligent Platform Management Interface
IPML	I pissed myself laughing
IPNG	Internet Protocol, Next Generation
IPS	in-plane switching
IPS	intrusion prevention system
IPSEC	Internet Protocol Security
IPV	in plaats van (dutch; instead of)
IPV6	next generation Internet Protocol, triggers japanese simple-mind ideas
IQ	intelligence quotient
IQ	[ccTLD] Irak
IR	infrared
IR	Interregio
IR	[ccTLD] Iran
IR	[Kfz] Iran
IRC	Internet Relay Chat
IRDA	infrared data association
IRILL	Initiative pour la Recherche et l'Innovation sur le Logiciel Libre
IRL	in real life
IRL	[Kfz] Irland
IRQ	interrupt request
IRQ	[Kfz] Irak
IRQL	interrupt request level
IRR	interrupt request register
IRT	in real time
IRT	in regards to
IRTF	Internet Research Task Force
IS	information system
IS	[ccTLD] Island
IS	[Kfz:D] Kreis Iserlohn
IS	[Kfz] Island
ISA	industry standard architecture
ISA	instruction set architecture
ISAGN	I see a great need
ISBN	International Standard Book Number
ISDN	integrated services digital network
ISI	inter-symbol interference
ISM	industrial, scientific and medical
ISN	initial serial number
ISO	International Standards Organisation
ISOC	Internet Society
ISP	internet service provider
ISR	in-service register
ISR	interrupt service routine
ISS	International Space Station
ISSN	international standard serial number
IST	interrupt stack table
ISTM	it seems to me
ISTR	I seem to recall
ISTR	I seem to remember
ISUP	ISDN User Part
ISV	independent software vendor
IT	information technology
IT	[ccTLD] Italien
ITA	Intent to Adopt
ITB	Intel Turbo Boost
ITO	Intent to Orphan
ITP	Intent to Package
ITU	International Telecommunication Union
ITU-T	ITU Telecommunication Standardisation Sector
ITYD	It's this you did
ITYM	I think you mean
ITYM	Is it this you mean
ITYM	It's this you mean
ITYW	I think you want
ITYW	I'll tell you what
ITYW	Is it this you want
ITYW	It's this you want
IUD	insert usual disclaimers
IUSS	if you say so
IV	initialisation vector
IVF	in-vitro fertilisation
IVT	interrupt vector table
IW	it's worse
IWBNI	it would be nice if
IWV	Impulswahlverfahren
IWV	Pulse Dial
IYD	in your dreams
IYKWIM	if you know what I mean
IYSS	if you say so
IYSWIM	if you see what I mean
IZ	[Kfz:D] Kreis Steinburg
J	[Kfz:D] Landkreis Jena
J	[Kfz] Japan
J/K	just kidding
J2EE	Java™ 2 Enterprise Edition
J4F	just for fun
JA	[Kfz] Jamaika
JAJAJAJA	yes yes yes yes (common German expression in OpenBSD development)
JAM	just a minute
JAR	Java™ Archive (collection of *.class files in a PKZIP container)
JARGON	hacker slang collection -- http://catb.org/~esr/jargon/
JARGON	hacker slang, censored -- http://catb.org/~esr/jargon/chaff.html
JAS	just a second
JB	[Kfz:D] Landkreis Jüterbog
JBD	journalling block device
JBIG	Joint Bi-Level Image Experts Group
JBOD	just a bunch of disks
JCA	J2EE Connector Architecture
JE	[ccTLD] Jersey
JE	[Kfz:D] Landkreis Jessen
JEV	[Kfz:D] Landkreis Friesland
JFDI	just fucking do it
JFET	junction [gate] field-effect transistor
JFF	just for fun
JFGI	just fucking Google it
JFK	John Fitzgerald Kennedy
JFTR	just falls Thema reinkarniert
JFTR	just for the record
JFW	just fucking works
JFYI	just for your information
JGI	just google it
JGI	just got it
JHD	Jahrhundert (century)
JHD	just hit "delete"
JIC	just in case
JIHBED	it is word arabic == TOP AND POWER INTELLIGENT</quote> (a TNF joke)
JIS	Japanese Institute for Standardisation
JIT	just in time
JJA	just joking around
JK	just kidding
JL	[Kfz:D] Landkreis Jerichower Land
JM	[ccTLD] Jamaika
JMO	just my opinion
JMP	jump
JNDI	Java Naming and Directory Interface
JO	[ccTLD] Jordanien
JO	[Kfz] Johor (veraltet)
JOBS	[sTLD] jobs (Unternehmen mit Stellenangeboten)
JOR	[Kfz] Jordanien
JP	[ccTLD] Japan
JPEG	Joint Photographic Experts Group
JPG	(file extension for JPEG files)
JR	Junior
JRE	Java™ Runtime Environment
JS	ECMAscript
JSB	Jetzt sehr bald
JSON	JavaScript Object Notation
JSP	Java™ Server Pages
JSR	jump to subroutine
JSYK	just so you know
JTAG	joint test action group
JTL	just too late
JTLYK	just to let you know
JULIET	J (International Radiotelephony Spelling Alphabet)
JULIETT	J (International Radiotelephony Spelling Alphabet)
JULIUS	J (deutsches Funkalphabet)
JW	just wondering
JÜL	[Kfz:D] Kreis Jülich
K	[Kfz:D] Kreis Köln
K	[Kfz] Kambodscha
KA	kA = keine Ahnung (no idea)
KA	[Kfz:D] Stadt- und Landkreis Karlsruhe
KAN	[Kfz] St. Kitts und Nevis (nicht offiziell)
KAR	[Kfz:D] Landkreis Karlstadt
KAR	[Kfz:D] Landkreis Main-Spessart
KARTEFOUR	4 (International Radiotelephony Spelling Alphabet)
KAT	[Kfz] Katanga (veraltet)
KAUFMANN	K (deutsches Funkalphabet)
KB	keyboard
KB	kilobyte
KB	knowledge base
KB	[Kfz:D] Landkreis Waldeck-Frankenberg
KBD	keyboard
KBD	kilobaud
KBE	Kappes Buure Expreß
KBE	Köln-Bonner Eisenbahnen
KC	[Kfz:D] Landkreis Kronach
KCD	Kernel Cousin Debian
KD	[Kfz] Kedah (veraltet)
KDE	Kiddish Desktop Environment
KE	[ccTLD] Kenia
KE	[Kfz:D] Landkreis Kempten (Allgäu)
KEH	[Kfz:D] Landkreis Kelheim
KEL	[Kfz:D] Landkreis Kehl
KEM	[Kfz:D] Landkreis Kemnath
KF	[Kfz:D] Landkreis Kaufbeuren
KFC	Kentucky Fried Chicken
KFZ	Kraftfahrzeug (autonomously powered vehicle)
KG	[ccTLD] Kirgisistan
KG	[Kfz:D] Landkreis Bad Kissingen
KGV	George Ⅴ, King of Britain
KGV	kleinstes gemeinsames Vielfaches (LCM)
KH	[ccTLD] Kambodscha
KH	[Kfz:D] Landkreis Bad Kreuznach
KHZ	kHz: Kilohertz (1'000 Hz)
KI	Künstliche Intelligenz (AI)
KI	[ccTLD] Kiribati
KI	[Kfz:D] kreisfreie Stadt Kiel
KIB	[Kfz:D] Donnersbergkreis
KIB	[Kfz:D] Landkreis Kirchheimbolanden
KILO	K (International Radiotelephony Spelling Alphabet)
KIR	[Kfz] Kiribati
KISS	keep it short and simple
KISS	keep it simple and smart
KISS	keep it simple and straightforward
KISS	keep it simple and stupid
KISS	keep it simple, stupid
KISS	keep it small and simple
KISS	keep it strictly simple
KISS	keep it sweet and simple
KITA	kick in the arse
KK	okay, okay
KK	[Kfz:D] Kreis Kempen-Krefeld
KL	[Kfz:D] kreisfreie Stadt und Landkreis Kaiserslautern
KL	[Kfz] Kelantan (veraltet)
KLE	[Kfz:D] Kreis Kleve
KLICK	kilometer
KLOC	thousand lines of code
KLOD	thousand lines of unidiff
KLZ	[Kfz:D] Landkreis Klötze
KM	[ccTLD] Komoren
KM	[Kfz:D] Landkreis Kamenz
KMA	keep me advised
KMA	keep moving ahead
KMA	kill me already
KMS	kernel mode-setting
KN	[ccTLD] St. Kitts und Nevis
KN	[Kfz:D] Landkreis Konstanz ohne die Gemeinde Büsingen am Hochrhein
KN	[Kfz] Grönland
KNF	kernel normal form -- https://www.mirbsd.org/man9/style
KO	knocked out
KO	[Kfz:D] kreisfreie Stadt Koblenz
KO	[Kfz:D] Landkreis Mayen-Koblenz
KOD	kiss of death
KOI	Код Обмена Информацией (Code for Information Exchange)
KOS	kill on sight
KP	kP = kein Peil (no idea, coll.)
KP	[ccTLD] Nordkorea
KP	[Kfz] Nordkorea
KPI	kernel programming interface
KR	[ccTLD] Südkorea
KR	[Kfz:D] kreisfreie Stadt Krefeld
KRU	[Kfz:D] Landkreis Krumbach (Schwaben)
KS	[Kfz:D] kreisfreie Stadt und Landkreis Kassel
KS	[Kfz] Kirgisistan
KSA	[Kfz] Saudi-Arabien
KSH	Korn Shell
KT	[Kfz:D] Landkreis Kitzingen
KTHX	okay, thanks
KU	[Kfz:D] Landkreis Kulmbach
KUNDE	kann ungestraft nerven, da Einnahmequelle
KUS	[Kfz:D] Landkreis Kusel
KVA	kernel virtual address
KVB	keine verläßliche Busverbindung
KVM	kernel virtual memory
KVM	keyboard, video and mouse (switch)
KVM	virtualisation module for Linux
KW	[ccTLD] Kuwait
KW	[Kfz:D] Landkreis Königs Wusterhausen
KWIM	know what I mean?
KWT	kwT = kein weiterer Text (cf. n/t)
KWT	[Kfz] Kuwait
KY	[ccTLD] Kaimaninseln
KY	[Kfz:D] Landkreis Kyritz
KYF	[Kfz:D] Kyffhäuserkreis
KZ	[ccTLD] Kasachstan
KZ	[Kfz] Kasachstan
KÖN	[Kfz:D] Landkreis Königshofen im Grabfeld
KÖT	[Kfz:D] Landkreis Köthen
KÖZ	[Kfz:D] Landkreis Kötzting
KÜN	[Kfz:D] Hohenlohekreis
KÜN	[Kfz:D] Landkreis Künzelsau
L	[Kfz:D] kreisfreie Stadt Lahn
L	[Kfz:D] kreisfreie Stadt Leipzig und Landkreis Leipziger Land
L	[Kfz:D] Lahn-Dill-Kreis, Zulassungsstelle in Wetzlar, Nebenstelle in Dillenburg
L	[Kfz] Luxemburg
L8	late
L8ER	later
L8R	later
LA	[ccTLD] Laos
LA	[Kfz:D] kreisfreie Stadt und Landkreis Landshut
LACP	Link Aggregation Control Protocol
LADSPA	Linux Audio Developers Simple Plugin API
LAG	Landesarbeitsgericht
LAMP	Linux Apache MySQL {Perl,PHP,Python}
LAMPP	Linux Apache MySQL {Perl,PHP,Python}
LAN	local area network
LAN	[Kfz:D] Landkreis Landau an der Isar
LAO	[Kfz] Laos
LAPIC	local advanced programmable interrupt controller
LAR	Liferay Archive (community pages, layout, portlets’ prefs, theme pointers)
LAR	load access rights
LAR	[Kfz] Libyen (nicht offiziell)
LART	luser attitude readjustment tool (ie, hammer)
LASM	Light Anti-Structures Missile
LAT	[Kfz:D] Landkreis Lauterbach
LATLON	Latitude / Longitude (coordinate format: N-S / E-W polar; usually WGS84)
LAU	[Kfz:D] Landkreis Lauf an der Pegnitz
LAU	[Kfz:D] Landkreis Nürnberger Land
LB	little brother
LB	[ccTLD] Libanon
LB	[Kfz:D] Landkreis Ludwigsburg
LB	[Kfz] Liberia (nicht offiziell)
LBA	logical block addressing
LBNL	last but not least
LBS	location-based service
LBS	[Kfz:D] Landkreis Lobenstein
LBZ	[Kfz:D] Landkreis Lübz
LC	[ccTLD] St. Lucia
LC	[gc] locationless cache (usually tracked at TC)
LC	[Kfz:D] Landkreis Luckau
LCA	Linux.conf.au
LCAS	Local Centre Authorisation Service
LCD	liquid crystal display
LCG	LHC Computing Grid (CE)
LCL	[gc] left calling card
LCM	landing craft, mechanised
LCM	least/lowest/smallest common multiple (KGV)
LCMAPS	Local Credential Mapping Service
LCP	link control protocol
LCR	least-cost routing
LD	[Kfz:D] Landkreis Landau in der Pfalz
LD	[Kfz:D] Landkreis Landau-Bad Bergzabern
LD	[Kfz:D] Landkreis Südliche Weinstraße
LDA	local delivery agent
LDAP	Lightweight Directory Access Protocol (not lightweight)
LDK	[Kfz:D] Lahn-Dill-Kreis
LDR	light-dependent resistor
LDS	[Kfz:D] Landkreis Dahme-Spreewald
LDT	local descriptor table
LDVM	Lies das verdammte Manual
LE	logical extent
LE	[Kfz:D] Landkreis Lemgo
LED	light emitting diode
LEO	[Kfz:D] Landkreis Leonberg
LER	label edge router
LER	light emitting resistant
LER	[Kfz:D] Landkreis Leer
LEV	[Kfz:D] kreisfreie Stadt Leverkusen
LF	line feed
LF	low frequency
LF	[Kfz:D] Landkreis Berchtesgadener Land
LF	[Kfz:D] Landkreis Laufen
LFM	lowest frequency mode
LFN	long file names
LFO	low-frequency oscillation
LFS	Large File Support
LFS	Linux from Scratch
LFS	Live for Speed (online racing simulator)
LFS	log-structured file system
LFU	least frequently used
LG	Landgericht
LG	[Kfz:D] Landkreis Lüneburg
LGPL	GNU Lesser General Public License
LGTM	looks good to me
LGTY	look good to you
LH	[Kfz:D] Kreis Lüdinghausen
LHA	LHarc archive (traditional archive compressor)
LHP	loop heat pipe
LI	[ccTLD] Liechtenstein
LI	[Kfz:D] Landkreis Lindau (Bodensee)
LIB	[Kfz:D] Landkreis Bad Liebenwerda
LIF	[Kfz:D] Landkreis Lichtenfels
LIFO	last in, first out
LILO	last in, last out
LILO	LInux LOader
LIMA	L (International Radiotelephony Spelling Alphabet)
LIN	[Kfz:D] Landkreis Lingen
LINT	local interrupt
LINUX	free (as in GNU) operating system kernel -- http://www.kernel.org/
LINUX	life is not utterly exciting
LIP	[Kfz:D] Kreis Lippe
LIR	local internet registry
LISC	Linux Internet Support Coorperative
LJ	LiveJournal
LJBF	let's just be friends
LK	[ccTLD] Sri Lanka
LK	[Kfz:D] Kreis Lübbecke
LK	[Schule DE] Leistungskurs
LKM	Linux kernel module
LKM	loadable kernel module
LKML	linux-kernel mailing list (vger.rutgers.edu -> vger.kernel.org)
LL	load linked
LL	[Kfz:D] Landkreis Landsberg am Lech
LL/SC	load linked / store conditional
LLC	logical link control
LLF	low level format
LLMNR	link-local multicast name resolution
LLVM	Low Level Virtual Machine
LM	LAN Manager
LM	long mode
LM	[Kfz:D] Landkreis Limburg-Weilburg
LMAA	Leck' mich am Arsch
LMAO	laughing my arse off
LMB	lick my balls
LMC	let me check
LMDDGTFY	let me duck duck go that for you
LMFAO	laughing my fucking ass off
LMG	Light Machine Gun
LMGTFY	let me google that for you
LMHO	laughing my head off
LMK	let me know
LMM	link management mode
LMNO	laughing my nuts off
LMSO	laughing my socks off
LMTP	Local Mail Transport Protocol
LN	[Kfz:D] Landkreis Lübben
LNO	loop nest optimisation
LOC	lines of code
LOH	[Kfz:D] Landkreis Lohr am Main
LOL	lachend, oba laut
LOL	laughing out loud
LOS	[Kfz:D] Landkreis Oder-Spree
LOTR	Lord of the Rings
LP	Langspielplatte (Schallplatte)
LP	Launchpad
LP	long playing (record)
LP	[gc] Lost Place
LP	[Kfz:D] Kreis Lippstadt
LPC	low pin count
LPC	[gc] Lost Place Cache
LPI	Linux Professional Institute
LPIC	Linux Professional Institute Certification
LPS	local positioning system
LR	[ccTLD] Liberia
LR	[Kfz:D] Landkreis Lahr
LR	[Kfz] Lettland (veraltet)
LRC	longitudinal redundancy check
LRM	left-to-right mark
LRO	left-to-right override
LRO	[Kfz:D] Landkreis Rostock
LRU	least recently used
LS	[ccTLD] Lesotho
LS	[Kfz:D] Märkischer Kreis
LS	[Kfz] Lesotho
LSA	[Kfz:D] Sachsen-Anhalt, Landesregierung und Landtag
LSB	least significant bit (rightmost, bit#0)
LSB	least significant byte
LSB	linux standards base
LSI	large scale integration
LSL	load segment limit
LSN	Large Scale NAT
LSN	[Kfz:D] Sachsen, Landesregierung und Landtag
LSR	label switch router
LSZ	[Kfz:D] Landkreis Langensalza
LT	[ccTLD] Litauen
LT	[Kfz] Litauen
LT	[Kfz] Tripolitanien (veraltet)
LTB	Lustiges Taschenbuch (Duck Tales)
LTCC	low temperature co-fired ceramic
LTE	Long Term Evolution
LTF	[gc] last to find
LTNS	long time no see
LTO	link-time optimisation
LTR	load task register
LTR	U+200E LEFT-TO-RIGHT MARK
LTS	*buntu equivalent of Debian unstable
LTS	long term Schrott
LTS	long term shlock
LTS	long time support
LU	[ccTLD] Luxemburg
LU	[Kfz:D] Landkreis Ludwigshafen
LU	[Kfz:D] Rhein-Pfalz-Kreis
LUDWIG	L (deutsches Funkalphabet)
LUG	Linux user group
LUG	local user group
LUK	[Kfz:D] Landkreis Luckenwalde
LUN	logical unit number
LV	logical volume
LV	[ccTLD] Lettland
LV	[Kfz] Lettland
LVG	Landesverfassungsgericht
LVM	logical volume management
LVT	local vector table
LWL	[Kfz:D] Altkreis Ludwigslust im Landkreis Ludwigslust-Parchim
LWN	Linux Weekly News
LWP	light-weight process
LWYL	laugh with you later
LY	[ccTLD] Libyen
LZW	Lempel Ziv Welch
LÖ	[Kfz:D] Landkreis Lörrach
LÖB	[Kfz:D] Landkreis Löbau
LÜD	[Kfz:D] Kreis Lüdenscheid
LÜN	[Kfz:D] kreisfreie Stadt Lünen
M	[Kfz:D] kreisfreie Stadt und Landkreis München
M	[Kfz] Israel (veraltet)
M	[Kfz] Malta
M8	mate
MA	Magister Artium
MA	[ccTLD] Marokko
MA	[Kfz:D] Landkreis Mannheim
MA	[Kfz] Marokko
MAB	[Kfz:D] Landkreis Marienberg
MAB	[Kfz:D] Mittlerer Erzgebirgskreis
MAC	mandatory access control
MAC	medium access control
MAC	message authentication code
MAD	mutually assured destruction
MADT	multiple APIC descriptor table
MAI	[Kfz:D] Landkreis Mainburg
MAK	[Kfz:D] kreisfreie Stadt Marktredwitz
MAL	[Kfz:D] Landkreis Mallersdorf
MAL	[Kfz] Malaysia
MAP	Mobile Application Part
MAR	[Kfz:D] Landkreis Marktheidenfeld
MARC	mailing list archives -- http://marc.theaimsgroup.com/
MARTHA	M (deutsches Funkalphabet)
MB	megabyte
MB	[Kfz:D] Landkreis Miesbach
MBCS	multi-byte character set
MBR	master boot record
MBS	megabits per second
MBZ	must be zero
MC	memory controller
MC	Midnight Commander (see NC, VC)
MC	[ccTLD] Monaco
MC	[Kfz:D] Landkreis Malchin
MC	[Kfz] Monaco
MCA	machine check architecture
MCC	multiversion concurrency control
MCE	machine check exception
MCGA	multicolor graphics adapter
MCH	memory controller hub
MCM	multi-chip module
MCP	Microsoft Certified Professional
MCQ	memory controlled queue
MCSE	"Mayday", called some experts
MCSE	mad consultants slurping ethanol
MCSE	madly causing slashdot effect
MCSE	mail consumed somewhere in exchange
MCSE	mainframe computers seemed extinct
MCSE	maintenance contracts seem expensive
MCSE	maintenance costs significantly extra
MCSE	making companies surrender everyday
MCSE	making computers slow everyday
MCSE	making computers spew errors
MCSE	making computers susceptible to exploit
MCSE	making cretins self-employed
MCSE	maledictis confutatious sounds exquisite
MCSE	management can't send e-mail
MCSE	management conned by something expensive
MCSE	management coronaries soon enough
MCSE	management will catch you with a screenful of erotica
MCSE	managers contain significant egos
MCSE	managing computers by slapdash empiricism
MCSE	managing crap systems everyday
MCSE	manipulative closed-source economics
MCSE	many collisions saturate ethernet
MCSE	marginal computer software enthusiast
MCSE	marketing cancels software efficiency
MCSE	marksmanship can solve everything
MCSE	mass c squared is energy
MCSE	massive computational solar eclipse
MCSE	massive cyberspace sheepshearing empire
MCSE	maybe could suggest exorcism
MCSE	me-too computer science education
MCSE	meandering cosmicrays 'sodded explorer
MCSE	megabytes can soon evaporate
MCSE	meowing cats suggest evil
MCSE	migrane-causing suckage extravaganza
MCSE	millenium caused societal extinction
MCSE	mindfscked computers swapping egregiously
MCSE	Minesweeper Consultant and Solitaire Expert
MCSE	minimally cheerful software experience
MCSE	minimising competence is so exhausting
MCSE	minion of the crappy software empire
MCSE	mischief causing shipwrecked equipment
MCSE	misconceived computer science experiment
MCSE	misguided consultant slagging eunuchs
MCSE	misunderstanding cryptically strange errors
MCSE	moe and curly's software emporium
MCSE	molasses comparitively seems expeditious
MCSE	molotov cocktails shutdown electricity
MCSE	monetary compensation sounds exciting
MCSE	mongolian clusterfsck swallows everything
MCSE	monkies composing shakespearian equivalents
MCSE	moot crypto software is exportable
MCSE	more co-opted standards everyday
MCSE	morning comes so early
MCSE	moron confused by sun equipment
MCSE	morons crudely simulating expertise
MCSE	mortifying crackle of static electricity
MCSE	most computers suck eggs
MCSE	most computers suck exasperatingly
MCSE	motherboard chips simulate encephalopathy
MCSE	mounteback causing significant expenses
MCSE	mouse clickings of sophomoric experimentation
MCSE	mouse clicks selected "erase"
MCSE	mozilla couldn't stomach explorer
MCSE	multiple corrective servicepack exorcist
MCSE	must consult someone experienced
MCSE	must... contain... STR. Eaaaaaaaaaaaurgh!
MCSE	mutant computer solutions evangelist
MCSE	mutant computers seem eviscerated
MCSE	mutated convoluted strokery everywhere
MCSE	mutated CP/M system emulator
MCSE	my cat studies ecclesiastes
MCSE	my company screws everyone
MCSE	my computer's software exploded
MCSE	my cranium softened easily
MCSE	my customers support extravagance
MD	Dr. med. (medical doctor)
MD	machine-dependent
MD	Minidisc
MD	[ccTLD] Moldawien
MD	[Kfz:D] kreisfreie Stadt Magdeburg
MD	[Kfz] Moldawien
MDA	mail delivery agent
MDA	monochrome display adapter
MDI	multi-document interface
MDRAM	multibank dynamic random access memory
MDWDW	Mach' doch, was Du willst!
MDWN	Markdown
ME	[ccTLD] Montenegro
ME	[Kfz:D] Kreis Mettmann
ME	[Kfz] Spanisch-Marokko (veraltet)
MED	[Kfz:D] Kreis Süderdithmarschen
MEG	[Kfz:D] Landkreis Melsungen
MEI	[Kfz:D] Landkreis Meißen-Radebeul
MEK	[Kfz:D] Mittlerer Erzgebirgskreis
MEL	[Kfz:D] Landkreis Melle
MEP	[Kfz:D] Landkreis Meppen
MER	[Kfz:D] Landkreis Merseburg
MES	[Kfz:D] Hochsauerlandkreis
MES	[Kfz:D] Kreis Meschede
MESI	modified, exclusive, shared, invalid
MET	[Kfz:D] Landkreis Mellrichstadt
MEX	[Kfz] Mexiko
MFC	Men from Cathay
MFC	merge from -current
MFG	with friendly greetings
MFM	merge from master
MFM	modified frequency modulation
MFS	Memory File System
MFT	Master File Table
MFT	merge from trunk
MFV	Mehrfrequenzwahlverfahren
MFV	Touch Tone
MG	[ccTLD] Madagaskar
MG	[Kfz:D] kreisfreie Stadt Mönchengladbach
MGH	[Kfz:D] Landkreis Mergentheim
MGL	[Kfz] Mongolei
MGN	[Kfz:D] Landkreis Meiningen
MGRS	Military Grid Reference System (WGS84)
MH	[ccTLD] Marshallinseln
MH	[Kfz:D] kreisfreie Stadt Mülheim an der Ruhr
MH	[Kfz] Marshallinseln
MHL	[Kfz:D] Landkreis Mühlhausen
MHZ	MHz: Megahertz (1'000'000 Hz)
MI	machine-independent
MI	[Kfz:D] Kreis Minden-Lübbecke
MIA	missing in action
MIB	management information base
MICRO	[altTLD] Micronations
MID	mobile Internet device
MIDI	musical instrument digital interface
MIF	management information format
MIKE	M (International Radiotelephony Spelling Alphabet)
MIL	[Kfz:D] Landkreis Miltenberg
MIL	[sTLD] military (militärische Einrichtungen der USA)
MILF	mother i'd like to fuck
MIMD	multiple instruction, multiple data
MIME	Multipurpose Internet Mail Extensions
MIMO	multiple input multiple output
MINT	http://freemint.de/en/
MINT	MiNT is Now TOS
MIPS	(def.) die Zahl von Millionen Maschinenoperationen pro Sekunde, von der der Hersteller garantiert, daß sie unter keinerlei Betriebsbedingungen überschritten wird
MIPS	meaningless indicator of processor speed
MIPS	meaningless information for a pushy salesman
MIPS	meaningless information provided by salesperson
MIPS	Microprocessor without Interlocked Pipeline Stages
MIPS	million instructions per second
MIRBSD	split of OpenBSD with a lot of improvements -- http://mirbsd.de/
MISCHAN	(accidentally writing in the wrong IRC channel)
MISD	multiple instruction, single data
MIT	Massachusetts Institute of Technology
MK	Mark (as in edition, version)
MK	[ccTLD] Mazedonien
MK	[Kfz:D] Märkischer Kreis
MK	[Kfz] Mazedonien
MKK	[Kfz:D] Main-Kinzig-Kreis ohne die Stadt Hanau
MKSH	MidnightBSD Korn Shell
MKSH	MirBSD Korn Shell
ML	machine language
ML	machine learning
ML	mailing list
ML	markup language
ML	maximum likelihood
ML	[ccTLD] Mali
ML	[Kfz:D] Landkreis Mansfelder Land
MLC	multi-level cell
MLHP	micro loop heat pipe
MM	[ccTLD] Myanmar
MM	[Kfz:D] Landkreis Memmingen
MMB	message me back
MMIC	monolithic microwave integrated circuit
MMIO	memory mapped input/output
MMU	memory management unit
MMX	matrix math extension
MMX	multimedia extension
MMX	multiple math extension
MN	[ccTLD] Mongolei
MN	[Kfz:D] Landkreis Mindelheim
MN	[Kfz:D] Landkreis Unterallgäu
MN	[Kfz] Montenegro (veraltet)
MNE	[Kfz] Montenegro
MNG	Multiple-Image Network Graphics
MO	magneto-optical
MO	modus operandi
MO	[ccTLD] Macao
MO	[Kfz:D] Kreis Moers
MOBI	[sTLD] mobile (Dienste, die die Nutzung durch mobile Endgeräte explizit unterstützen)
MOC	[Kfz] Mosambik
MOD	[Kfz:D] Landkreis Marktoberdorf
MOD	[Kfz:D] Landkreis Ostallgäu
MODE	die teuerste Stoffwechselkrankheit
MODE	Mann, opfere dein Erspartes!
MOESI	modified, owned, exclusive, shared, invalid
MOF	maximum operating frequency
MOL	[Kfz:D] Landkreis Märkisch-Oderland
MOM	(please hold/wait a) moment
MOM	Moment, bitte!
MOM	mother (USA English)
MON	[Kfz:D] Kreis Monschau
MOS	[Kfz:D] Landkreis Mosbach
MOS	[Kfz:D] Neckar-Odenwald-Kreis
MOSFET	metal-oxide-semiconductor field-effect transistor
MOSI	modified, owned, shared, invalid
MOTAS	member of the appropriate sex
MOTOS	member of the opposite sex
MOTSS	member of the same sex
MOTU	masters of the universe (Ubuntu developer)
MP	multi-platform
MP	multiplayer
MP	multiprocessing
MP	multiprocessor
MP	[ccTLD] Nördliche Marianen
MPEG	moving picture experts group
MPI	message passing interface
MPL	Mozilla Public License
MPLS	Multiprotocol Label Switching
MPP	massively parallel processor
MPS	memory pool system
MPS	multiprocessor specification
MQ	[ccTLD] Martinique
MQ	[Kfz:D] Landkreis Merseburg-Querfurt
MR	modem ready
MR	[ccTLD] Mauretanien
MR	[Kfz:D] Landkreis Marburg-Biedenkopf
MRU	most recently used
MS	Microsoft
MS	[ccTLD] Montserrat
MS	[Kfz:D] Kreis Münster
MS	[Kfz] Mauritius
MSA	Mail Submission Agent
MSAS	Multi-functional Satellite Augmentation System
MSB	most significant bit (leftmost)
MSB	most significant byte
MSC	Magister Scientiae
MSD	mean shortest distance
MSE	mean square error
MSE	[Kfz:D] Landkreis Mecklenburgische Seenplatte
MSF	minutes seconds frames
MSG	message
MSH	[Kfz:D] Landkreis Mansfeld-Südharz
MSI	message signaled interrupt
MSI	modified, shared, invalid
MSIE	Microsoft Slaves' Incessant Exasperation
MSIE	Microsoft® Internet Explorer
MSP	[Kfz:D] Landkreis Main-Spessart
MSR	machine state register
MSS	maximum segment size
MSS	maybe (dutch: misschien)
MST	[Kfz:D] Altkreis Mecklenburg-Strelitz im Landkreis Mecklenburgische Seenplatte
MT	machine translation
MT	[ccTLD] Malta
MT	[Kfz:D] Landkreis Westerwald
MT	[Kfz:D] Unterwesterwaldkreis
MT	[Kfz:D] Westerwaldkreis
MT	[Kfz] Tanger (veraltet)
MTA	mail transfer agent
MTBF	mean time between failures
MTF	more to follow
MTK	[Kfz:D] Main-Taunus-Kreis
MTL	[Kfz:D] Muldentalkreis
MTP	see MTP-2, MTP-3
MTP-2	Message Transfer Part Level 2
MTP-3	Message Transfer Part Level 3
MTRR	memory type range register
MTTF	mean time to failure
MTU	maximum transmission unit
MU	[ccTLD] Mauritius
MUA	mail user agent
MUC	multi user chat (jabber/xmpp equivalent to irc channel)
MUD	multi-user domain
MUD	multi-user dungeon
MUGGLE	[gc] person not knowing about geocaching
MULTICS	Multiplexed Information and Computing Service
MUSEUM	[sTLD] museums (Museën)
MUX	multiplex
MV	Mecklenburg-Vorpommern
MV	[ccTLD] Malediven
MV	[Kfz] Malediven (nicht offiziell)
MVCC	multiversion concurrency control
MVL	[Kfz:D] Mecklenburg-Vorpommern, Landesregierung und Landtag
MVS	Multiple Virtual Systems
MW	U+0095 MESSAGE WAITING
MW	[ccTLD] Malawi
MW	[Kfz:D] Landkreis Mittweida
MW	[Kfz] Malawi
MWDW	Mach' was Du willst!
MWE	module width encoding
MWSG	Middleware Security Group
MWST	Mehrwertsteuer (VAT)
MX	mail exchange
MX	[ccTLD] Mexiko
MY	[ccTLD] Malaysia
MY	[Kfz:D] Landkreis Mayen
MYA	[Kfz] Myanmar
MYK	[Kfz:D] Landkreis Mayen-Koblenz
MYOB	mind your own business
MZ	[ccTLD] Mosambik
MZ	[Kfz:D] kreisfreie Stadt Mainz und Landkreis Mainz-Bingen
MZG	[Kfz:D] Landkreis Merzig-Wadern
MÜ	[Kfz:D] Landkreis Mühldorf am Inn
MÜB	[Kfz:D] Landkreis Münchberg
MÜL	[Kfz:D] Landkreis Müllheim
MÜN	[Kfz:D] Landkreis Münsingen
MÜR	[Kfz:D] Altkreis Müritz im Landkreis Mecklenburgische Seenplatte
N	[Kfz:D] Landkreis Nürnberg
N	[Kfz] Norwegen
N/A	not applicable
N/A	not available
N/C	not connected
N/M	never mind
N/T	no text (also: nt)
N/T	[gc] no trade
N1	nice one
N8	(good)neight
N8	(gute) Nacht
NA	see N/A
NA	[ccTLD] Namibia
NA	[Kfz] Niederländische Antillen
NAB	[Kfz:D] Landkreis Nabburg
NACK	negative acknowledgement
NAD83	North American Datum of 1983 (GRS80 reference ellipsoid)
NADAZERO	0 (International Radiotelephony Spelling Alphabet)
NAFAIK	not as far as I know
NAI	[Kfz:D] Landkreis Naila
NAK	U+0015 ␕ NEGATIVE ACKNOWLEDGE
NAM	[Kfz] Namibia
NAME	[uTLD] name (natürliche Personen)
NAN	not a number
NAPT	Network Address and Port Translation
NAS	network attached storage
NAS	Network Audio System
NAT	network address translation
NATEL	(CH) Nationales Autotelephon
NATO	North Atlantic Treaty Organisation
NATO	Organisation du traité de l'Atlantique Nord
NAU	[Kfz:D] Landkreis Nauen
NAU	[Kfz] Nauru
NAV	network allocation vector
NB	[Kfz:D] Landkreis Neubrandenburg
NBC	National Broadcasting Company (USA)
NBD	network block device
NBD	no big deal
NBH	U+0083 NO BREAK HERE
NBSP	U+00A0 NO-BREAK SPACE
NC	Norton Commander (see MC, VC)
NC	not connected
NC	numerical control
NC	[ccTLD] Neukaledonien
NC	[gc] navicache
NC	[gc] night cache
NCL	[Kfz] Neukaledonien
NCO	numerically-controlled oscillator
NCP	Network Control Protocol
NCQ	native command queuing
ND	neighbor discovery
ND	[Kfz:D] Landkreis Neuburg an der Donau
ND	[Kfz:D] Landkreis Neuburg-Schrobenhausen
NDH	[Kfz:D] Landkreis Nordhausen
NDH	[Kfz] Kroatien (veraltet)
NDPF	Nikhef Data Processing Facility
NE	numeric error
NE	[ccTLD] Niger
NE	[Kfz:D] Rhein-Kreis Neuß
NE1	anyone
NEA	[Kfz:D] Landkreis Neustadt an der Aisch-Bad Windsheim
NEB	[Kfz:D] Landkreis Nebra
NEC	[Kfz:D] kreisfreie Stadt Neustadt bei Coburg
NEL	U+0085 NEXT LINE
NEN	[Kfz:D] Landkreis Neunburg vorm Wald
NEP	[Kfz] Nepal (nicht offiziell)
NERD	non emotionally responding dude
NES	[Kfz:D] Landkreis Bad Neustadt an der Saale
NES	[Kfz:D] Landkreis Rhön-Grabfeld
NET	[uTLD] network (Netzverwaltung)
NETBSD	... is a registered trademark of TNF
NETBSD	most portable open source operating system -- http://www.netbsd.org/
NEU	[Kfz:D] Landkreis Hochschwarzwald
NEW	[Kfz:D] Landkreis Neustadt an der Waldnaab
NF	[ccTLD] Norfolkinsel
NF	[Kfz:D] Kreis Nordfriesland
NF	[Kfz] Neufundland (veraltet)
NFA	no flaming allowed
NFA	nondeterministic finite automaton
NFC	near-field communication
NFC	no fucking chance
NFC	no fucking clue
NFC	no further consequences
NFC	not favourably considered
NFI	no flame intended (usually: NOFI)
NFI	no fucking idea
NFS	need file server
NFS	Need for Speed (computer game)
NFS	network[ing] file system
NFS	nightmare file system
NFS	no filesystem
NFW	no fucking way
NG	[ccTLD] Nigeria
NGN	[Kfz] Niederländisch-Neuguinea (veraltet)
NGO	Non-Government Organisation
NGR	[Kfz] Nigeria
NH	[Kfz:D] Landkreis Neuhaus
NH	[Kfz:D] Landkreis Neustadt an der Weinstraße
NHS	National Health Service (UK)
NI	Niedersachsen
NI	[ccTLD] Nicaragua
NI	[Kfz:D] Landkreis Nienburg
NI	[Kfz] Nordirland
NIA	next instruction address
NIB	[Kfz:D] Kreis Südtondern
NIC	network information centre
NIC	network interface card
NIC	[Kfz] Nicaragua
NIDS	network intrusion detection system
NIFOC	naked in front of computer
NIG	[Kfz] Niger (veraltet)
NIH	not invented here
NIL	not in list
NIMB	not in my backyard
NIMBY	not in my backyard
NINER	9 (International Radiotelephony Spelling Alphabet)
NINU	[gc] niets in, niets uit (cf. TNLN)
NIP	network interface protocol
NIPS	network intrusion prevention system
NIS	network information service
NK	[Kfz:D] Stadt Neunkirchen im Landkreis Ottweiler
NL	Newline (U+000A)
NL	U+000A ␊ LINE FEED (LF)
NL	[ccTLD] Niederlande
NL	[Kfz:D] Niedersachsen, Landesregierung und Landtag
NL	[Kfz] Niederlande
NLS	native language support
NM	never mind
NM	New Maintainer
NM	[gc] needs maintenance
NM	[Kfz:D] Landkreis Neumarkt in der Oberpfalz
NMB	[Kfz:D] Landkreis Naumburg
NMBS	Nationale Maatschappij der Belgische Spoorwegen
NMEA	National Marine Electronics Association
NMF	not my fault
NMI	non-maskable interrupt
NMP	not my problem
NMS	network management system
NMS	[Kfz:D] kreisfreie Stadt Neumünster
NMU	non-maintainer upload
NNTP	Network News Transfer Protocol
NO	[ccTLD] Norwegen
NOC	network operation centre
NOFI	no flame intended
NOH	[Kfz:D] Landkreis Grafschaft Bentheim
NOL	[Kfz:D] Niederschlesischer Oberlausitzkreis
NOM	no offence meant
NOM	[Kfz:D] Landkreis Northeim
NOOB	newbie
NOP	no operation
NOR	[Kfz:D] Landkreis Norden
NORDPOL	N (deutsches Funkalphabet)
NOTA	none of the above
NOVEMBER	N (International Radiotelephony Spelling Alphabet)
NOVENINE	9 (International Radiotelephony Spelling Alphabet)
NOYB	none of your business
NOYFB	none of your fucking business
NP	no problem
NP	nondeterministic polynomial time
NP	now playing
NP	U+000C ␌ FORM FEED (FF)
NP	[ccTLD] Nepal
NP	[Kfz:D] Landkreis Neuruppin
NPC	non-player character
NPE	NULL pointer exception
NPOASR	never part of a stable release
NR	not really
NR	[ccTLD] Nauru
NR	[Kfz:D] Landkreis Neuwied am Rhein
NR	[Kfz] Nordrhodesien (veraltet)
NRFPT	not ready for prime time
NRN	no reply necessary
NRN	not right now
NRNR	[gc] nichts rein, nichts raus (cf. TNLN)
NRW	[Kfz:D] Nordrhein-Westfalen, Landesregierung und Landtag
NRZ	non-return to zero
NRÜ	[Kfz:D] Landkreis Neustadt am Rübenberge
NS	Network Service
NS	Niederländische Staatsbahn
NSA	National Security Agency
NSA	never say anything
NSA	no such agency
NSFW	not safe for work
NSFW	not suitable for work
NT	new technology
NT	no text (also: n/t)
NT	[gc] no trade
NT	[Kfz:D] Landkreis Nürtingen
NTLM	NT LAN Manager (login protocol suite)
NTM	non-deterministic Turing machine
NTN	no thanks needed
NTP	Network Time Protocol
NTSC	Never Twice Same Color
NU	[ccTLD] Niue
NU	[Kfz:D] Landkreis Neu-Ulm
NUL	U+0000 ␀ NULL
NULL	[altTLD] Individuelle, nicht-kommerzielle Seiten natürlicher Personen
NUMA	non-uniform memory access
NUNP	no users, no problems
NVIU	newer version in unstable
NVM	never mind
NVP	[Kfz:D] Landkreis Nordvorpommern
NVRAM	non-volatile random access memory
NW	no way
NW	Nordrhein-Westfalen
NW	not write-through
NW	[Kfz:D] Landkreis Neustadt an der Weinstraße
NW	[Kfz:D] Landkreis Neuwied
NWM	[Kfz:D] Landkreis Nordwestmecklenburg
NX	no execute
NXT	next
NY	[Kfz:D] Landkreis Niesky
NZ	[ccTLD] Neuseeland
NZ	[Kfz:D] Landkreis Neustrelitz
NZ	[Kfz] Neuseeland
NÄHMLICH	Wer nämlich mit h schreibt, ist dämlich.
NÄMLICH	Wer nämlich mit h schreibt, ist dämlich.
NÖ	[Kfz:D] Landkreis Nördlingen
O I C	oh, I see
O2W	off to work
OA	[Kfz:D] Landkreis Oberallgäu
OAEP	optimal asymmetric encryption padding
OAL	[Kfz:D] Landkreis Ostallgäu
OAO	over and out
OASIS	Organisation for the Advancement of Structured Information Standards
OB	[Kfz:D] kreisfreie Stadt Oberhausen
OBB	[Kfz:D] Landkreis Obernburg am Main
OBG	[Kfz:D] Landkreis Osterburg
OBLG	Oberste Landesgerichte
OBO	off by one
OBOE	off by one error
OBS	OpenSuSE Buildservice
OC	Optical Carrier (OC-3 ≘ STM-1)
OC	original character
OC	[gc] opencaching.{cz,de,pl,…} (now closedcaching?)
OC	[Kfz:D] Bördekreis
OC	[Kfz:D] Landkreis Oschersleben
OCAML	Objective Caml
OCH	[Kfz:D] Landkreis Ochsenfurt
OCL	object constraint language
OCR	optical character recognition
OCTA	eight-
OD	[Kfz:D] Kreis Stormarn
ODCM	on-demand clock modulation
ODF	OASIS Open Document Format for Office Applications (ISO/IEC 26300:2006)
ODT	on-die termination
OE	Microsoft Outlook Expreß (Windows built-in MUA/newsreader)
OE	operating environment
OE	[Kfz:D] Kreis Olpe
OEM	original equipment manufacturer
OF	[Kfz:D] kreisfreie Stadt Offenbach am Main und Landkreis Offenbach
OFC	of course
OFC	original female character (OC)
OFDM	orthogonal frequency division multiplexing
OFET	organic field-effect transistor
OFH	Our Favourite Headmaster (HP)
OG	[Kfz:D] Landkreis Offenburg
OG	[Kfz:D] Ortenaukreis
OGF	Open Grid Forum
OGG	(container format, similar to RIFF)
OH	other half
OH	[Kfz:D] Kreis Ostholstein
OHA	[Kfz:D] Landkreis Osterode am Harz
OHV	[Kfz:D] Landkreis Oberhavel
OHZ	[Kfz:D] Landkreis Osterholz
OIC	oh, I see
OID	of iets dergelijks (or so, or something like that)
OIOW	or, in other words, ...
OK	[Kfz:D] Ohrekreis
OKTA	eight-
OKTOEIGHT	8 (International Radiotelephony Spelling Alphabet)
OL	[Kfz:D] kreisfreie Stadt Oldenburg (Oldenburg) und Landkreis Oldenburg
OLD	[Kfz:D] Kreis Oldenburg in Holstein
OLE	object linking and embedding
OLF	(slightly modified ELF file format with operating system tag)
OLG	Oberlandesgericht und Kammergericht
OM	[ccTLD] Oman
OM	[Kfz] Oman
OMC	original male character (OC)
OMF	Object Metafile
OMFG	oh my fucking God
OMG	oh my God
OMG	Oh my Goddess!
OMW	on my way
ONFI	open nand flash interface
ONNA	oh no, not again
ONNTA	oh no, not this again
OO	object oriented
OO	OpenOffice
OOB	out of band
OOB	out of bounds
OOC	out of curiosity
OOE	out of order execution
OOI	out of interest
OOM	out of memory
OOO	OpenOffice.org
OOP	object oriented programming
OOSE	object oriented software engineering
OOSOOM	out of sight, out of mind
OOTP	[HP] Order of the Phœnix
OOXML	Office Open XML (ISO/IEC 29500)
OP	[Kfz:D] Rhein-Wupper-Kreis
OPC	Obfuscated Perl Contest
OPENBSD	most secure open source operating system -- http://www.OpenBSD.org/
OPM	operations per minute
OPN	Open Projects Network (former Linpeople, now Freenode)
OPR	[Kfz:D] Landkreis Ostprignitz-Ruppin
OPS	operations per second
OPTU	Octet Pass-Through for Unicode (encoding) -- MirOS OPTU-8 and OPTU-16
OQL	object query language
OR	[Kfz:D] Landkreis Oranienburg
ORG	[uTLD] organisation (nichtkommerzielle Organisationen)
ORM	object-relational mapping
OS	Obligation Service
OS	operating system
OS	[Kfz:D] kreisfreie Stadt und Landkreis Osnabrück
OSC	U+009D OPERATING SYSTEM COMMAND
OSCAR	O (International Radiotelephony Spelling Alphabet)
OSD	open source definition
OSF	open software foundation
OSGB	Ordnance Survey National Grid of Great Britain (OSGB36)
OSI	Open Source Initiative
OSI	open systems interconnection
OSL	[Kfz:D] Landkreis Oberspreewald-Lausitz
OSM	Open Street Map
OSPF	open shortest path first
OSPM	OS power management
OSS	open sound system
OSS	open source software
OSS	[altTLD] Open Source Software
OSTD	[Schule DE] Oberstudiendirektor
OSTR	[Schule DE] Oberstudienrat
OSVW	operating system visible workarounds
OT	off topic
OT	ohne Themenbezug
OTL	out to lunch
OTOH	on the other hand
OTP	one time password
OTP	one true pairing
OTP	open telecom platform
OTS	off the shelf
OTT	over the top
OTT	[Kfz:D] Landkreis Land Hadeln
OTTO	O (deutsches Funkalphabet)
OTTOMH	off the top of my head
OTW	on the way
OTW	Organisation for Transformative Works -- http://transformativeworks.org/
OTW	[Kfz:D] Landkreis Ottweiler
OU	organisational unit
OUI	organisationally unique identifier
OVG	Oberverwaltungsgericht
OVI	[Kfz:D] Landkreis Oberviechtach
OVL	[Kfz:D] Obervogtland (Landkreise Klingenthal und Oelsnitz)
OVP	[Kfz:D] Landkreis Ostvorpommern
OWL	Web Ontology Language
OWTTE	or words to that effect
OZ	[Kfz:D] Landkreis Oschatz
P	[Kfz:D] Landkreis Potsdam
P	[Kfz] Portugal
P&P	Philosophy and Procedures
P2P	PCI to PCI
P2P	peer to peer
PA	phase accumulator
PA	physical address
PA	[ccTLD] Panama
PA	[Kfz:D] kreisfreie Stadt und Landkreis Passau
PA	[Kfz] Panama
PAC	phase-amplitude converter
PAD	Padding Character (U+0080)
PAE	physical address extension
PAF	[gc] phone a friend (usually required for webcam caches)
PAF	[Kfz:D] Landkreis Pfaffenhofen an der Ilm
PAK	[Kfz] Pakistan (veraltet)
PAL	friend, mate
PAL	phase alternating line
PAL	Problem anderer Leute (cf. SEP)
PAL	programmable array logic
PAL	[Kfz] Palau
PAM	pluggable authentication modules
PAM	pulse amplitude modulation
PAN	[Kfz:D] Landkreis Pfarrkirchen
PAN	[Kfz:D] Landkreis Rottal-Inn
PAN	[Kfz] Angola (veraltet)
PANTAFIVE	5 (International Radiotelephony Spelling Alphabet)
PAP	password authentication protocol
PAP	Policy Administration Point
PAPA	P (International Radiotelephony Spelling Alphabet)
PAR	[Kfz:D] Landkreis Parsberg
PARODY	[altTLD] Parodie
PAT	page attribute table
PAT	port address translation
PATA	parallel ATA (IDE, AT-Bus)
PAULA	P (deutsches Funkalphabet)
PAX	portable archive exchange
PB	powerbook
PB	problem
PB	[Kfz:D] Kreis Paderborn
PBAC	Policy Based Access Control
PBE	pending break encoding
PBE	programming by example
PBM	portable bitmap
PBR	partition boot record (bootsector)
PBX	private branch exchange
PC	personal computer
PC	program counter
PCB	printed circuit board
PCC	Portable C Compiler
PCD	page-level cache disable
PCE	performance-monitor counter enable
PCH	[Kfz:D] Altkreis Parchim im Landkreis Ludwigslust-Parchim
PCI	peripheral component interconnect
PCM	phase change memory
PCM	pulse code modulation
PCMCIA	Personal Computer Memory Card International Association
PCRE	Perl compatible regular expression
PCS	Personal Communications Services (the 1900 MHz band in the USA)
PCS	pieces
PCX	Personal Computer Exchange (Paintbrush bitmap)
PD	public domain
PDA	personal digital assistant
PDA	public display of affection
PDA	pushdown automaton
PDAG	propositional directed acyclic graph
PDB	power distribution board
PDF	portable document format
PDL	Policy Description Language
PDM	pulse-duration modulation
PDN	pull-down network
PDP	page descriptor page
PDP	Policy Decision Point
PDQ	pretty darn quick
PDS	please don't shout
PDS	Policy Decision Service
PDS	product data sheet
PDU	protocol data unit
PE	physical education
PE	Policy Editor
PE	Polyäthylen
PE	protection enable
PE	[ccTLD] Peru
PE	[Kfz:D] Landkreis Peine
PE	[Kfz] Peru
PEAP	Protected EAP
PEBCAK	reverse'ism for PEBKAC
PEBKAC	problem exists between keyboard and chair
PECI	platform environment control interface
PEG	[Kfz:D] Landkreis Pegnitz
PENTA	five-
PEP	Policy Enforcement Point
PEP	protocol extension protocol
PEP	Python Enhancement Proposal
PER	packed encoding rules
PER	[Kfz:D] Landkreis Perleberg
PERL	Pathologically Eclectic Rubbish Lister
PERL	Perl’s not an acronym, according to its manpage
PERL	practical extraction [and] report language
PF	packet filter
PF	[ccTLD] Französisch-Polynesien
PF	[Kfz:D] Stadtkreis Pforzheim und Enzkreis
PFI	pay for inclusion
PFO	planetforge.org
PFO	please fuck off
PFS	perfect forward secrecy
PFY	pimply faced youth
PG	[ccTLD] Papua-Neuguinea
PGAS	partitioned global address space
PGE	page global enable
PGM	portable greymap
PGP	Pretty Good Privacy
PH	[ccTLD] Philippinen
PHB	PCI host bridge
PHB	pointy haired boss
PHD	Doctor of Philosophy
PHP	people hate PHP
PHP	personal homepage
PHP	PHP: Hypertext Preprocessor
PI	3.141592653589793238462643383279502884197…
PI	Private Investigator
PI	[Kfz:D] Kreis Pinneberg
PI	[Kfz] Philippinen (veraltet)
PIC	position independent code
PIC	programmable interrupt controller
PID	process id
PIE	position independent executable
PIM	personal information manager
PIM	platform-independent model
PIN	personal identification number
PIO	programmed input/output
PIP	Policy Information Point
PIPT	physically indexed, physically tagged
PIQ	prefetch input queue
PIR	[Kfz:D] Landkreis Pirna
PIR	[Kfz:D] Landkreis Sächsische Schweiz-Osterzgebirge
PIT	programmable interrupt timer
PITA	bread used to eat Gyros in
PITA	pain in the arse
PIV	personal identity verification
PK	[ccTLD] Pakistan
PK	[Kfz:D] Landkreis Pritzwalk
PK	[Kfz] Pakistan
PKCS	public-key cryptography standards
PKG	package
PKI	public key infrastructure
PKSP	pound keys and spew profanity
PL	[ccTLD] Polen
PL	[Kfz:D] Landkreis Plauen
PL	[Kfz] Polen
PLC	programmable logic controller
PLD	Partial Line Down (U+008B)
PLD	programmable logic device
PLD	U+008B PARTIAL LINE FORWARD
PLIP	Parallelport IP
PLL	phase locked loop
PLONK	Poster liest Originalposter nicht konsequent
PLRU	pseudo LRU
PLTM	package level thermal management
PLU	Partial Line Up (U+008C)
PLU	price look-up code
PLU	U+008C PARTIAL LINE BACKWARD
PLZ	please
PLÖ	[Kfz:D] Kreis Plön
PM	phase modulation
PM	post meridiem
PM	power management
PM	Prime Minister
PM	private message
PM	pulse modulation
PM	U+009E PRIVACY MESSAGE
PM	[ccTLD] Saint-Pierre und Miquelon
PM	[gc] premium member (on GC.com)
PM	[Kfz:D] Landkreis Potsdam-Mittelmark
PMD	poor man's debugging (aka printf)
PME	power management event
PMFI	problem magically fixed itself
PMFJI	pardon me for jumping in
PMI	geistiger Dünnschiß
PMI	platform management interrupt
PMI	postmentale Inkontinenz
PMIO	port-mapped input/output
PMMU	Paged Memory Management Unit
PMMU	programmable MMU
PMO	[gc] premium member only (restricted cache listing on GC.com)
PMS	female monthly nightmare
PMS	post-menstruale Störungen/Stimmungsschwankungen
PMS	prämenstruelles Syndrom
PMSL	pissing myself laughing
PMT	photo-multiplier tube
PMU	power management unit
PN	[ccTLD] Pitcairninseln
PN	[Kfz:D] Landkreis Pößneck
PNG	persona non grata
PNG	portable network graphics
PNG	[Kfz] Papua-Neuguinea (nicht offiziell)
PNM	portable anymap (PBM, PGM, PPM)
PNP	pay and pray
PNP	plug and play
PNP	plug and pray
POA	[HP] Prisoner of Azkaban
POC	phone operation centre
POC	piece of crap
POC	point of contact
POC	proof of concept
POE	power over ethernet
POF	probability of failure
POI	[gc] point of interest
POINT	(decimal point) . (International Radiotelephony Spelling Alphabet)
POLA	principle of least astonishment
POLS	principle of least surprise
POP	point of presence
POP	Post Office Protocol
POP	power on password
POS	piece of shit
POS	point of sale
POSIX	Portable Operating System Interface (for Unix)
POST	power on self test
POST	[sTLD] postal (Post und Logistikunternehmen)
POSUX	see POSIX and SUX
POTS	plain old telephone system
POV	point of view
POW	power over WLAN
POW	prisoner of war
POWER	performance optimisation with enhanced RISC (as in IBM's POWER CPUs)
PP	apiece
PP	pair programming
PP	per person
PPB	PCI [to] PCI bridge
PPC	Pocket PC
PPC	PowerPC
PPI	pixels per inch
PPL	people
PPL	pretty please
PPL	[Schule DE] Praktische Philosophie
PPM	pages per minute
PPM	parts per million
PPM	portable pixmap
PPP	petty pet peeve
PPP	Point-to-Point Protocol
PPPOA	Point-to-Point Protocol over ATM
PPPOE	Point-to-Point Protocol over Ethernet
PPPOW	PPP over WLAN
PPU	physics processing unit
PR	public relations
PR	[ccTLD] Puerto Rico
PR	[Kfz:D] Landkreis Prignitz
PR	[Kfz] Persien (veraltet)
PRBS	pseudo-random bit sequence
PRI	[Kfz] Puerto Rico
PRIMA	Privilege Management, Authorisation and Enforcement in Grid Environments
PRML	partial response, maximum likelihood
PRN	pseudo-random noise
PRN	pseudo-random number
PRNG	pseudo-random number generator
PRO	[uTLD] professionals (qualifizierte Fachkräfte)
PROM	programmable read only memory
PRÜ	[Kfz:D] Landkreis Prüm
PS	post scriptum
PS	Postscript
PS	[ccTLD] Palästinensische Autonomiegebiete
PS	[HP] Philosopher's Stone
PS	[Kfz:D] kreisfreie Stadt Pirmasens und Landkreis Südwestpfalz
PS	[Kfz] Perlis (veraltet)
PSA	public service announcement
PSD	Photoshop Document
PSD	power spectral density
PSE	page size extensions
PSK	phase shift keying
PSK	pre-shared key
PSTN	public switched telephone network
PSU	power supply unit
PSW	program status word (flags register)
PT	physical training
PT	[ccTLD] Portugal
PTB	Physikalisch-Technische Bundesanstalt
PTB	powers that be
PTE	page table entry
PTLA	pseudo top level aggregator
PTM	[Kfz] Malaysia (veraltet)
PTP	page table page
PTV	parental tunnel vision
PTV	perceived target value
PU	private use
PU	processing unit
PU1	U+0091 PRIVATE USE ONE
PU2	U+0092 PRIVATE USE TWO
PUK	[Schule DE] Pflichtunterricht im Klassenverband
PUN	physical unit number
PUT	[Schule DE] Pflichtunterricht in Teilklassen
PV	physical volume
PVG	physical volume group
PVI	protected-mode virtual interrupt
PW	[ccTLD] Palau
PW	[Kfz:D] Landkreis Pasewalk
PWM	pulse width modulation
PWP	Plot? What Plot?
PWP	porn without plot
PXE	preboot execution environment
PY	[ccTLD] Paraguay
PY	[Kfz] Paraguay
PZ	[Kfz:D] Landkreis Prenzlau
Q	[Kfz] Katar
Q1	[Schule DE] Qualifikationsphase 1 (11. Klasse Gymnasium nach G8)
Q2	[Schule DE] Qualifikationsphase 2 (12. Klasse Gymnasium nach G8)
Q2140	ITU-T Recommendation Q.2140 (B-ISDN ATM adaptation layer)
QA	quality assurance
QA	[ccTLD] Katar
QAM	quadrature amplitude modulation
QAM	quality assurance management
QBE	query by example
QC	quality control
QDI	quasi delay insensitive
QED	quod erat demonstrandum
QFT	quoted for truth
QFT	[Kfz:D] Landkreis Querfurt
QLB	[Kfz:D] Landkreis Quedlinburg
QOS	quality of service
QOTD	quote of the day
QR	Quick Reaction
QUEBEC	Q (International Radiotelephony Spelling Alphabet)
QUELLE	Q (deutsches Funkalphabet)
R	r, are
R	[Kfz:D] kreisfreie Stadt und Landkreis Regensburg
R	[Kfz] Rumänien (veraltet)
R	[Kfz] Rußland (veraltet)
R/O	read-only
R/W	read-write
RA	receiver address
RA	remote assistance
RA	residential advisor
RA	resource affinity
RA	router advertisement
RA	[Kfz:D] Landkreis Rastatt
RA	[Kfz] Argentinien
RAD	rapid application development
RADIUS	Remote Authentication Dial In User Service
RAID	redundant array of inexpensive disks
RAM	random access memory
RAR	Java™ Resource Adapter Archive (collection of class, XML and other JCA), cf. JAR
RAR	Roshal Archive (traditional archive compressor)
RAS	remote access service
RAS	restartable atomic sequence
RAS	row address strobe
RATIBIBUGLE	french-specific version of ROTOTILL
RB	Regionalbahn
RB	[Kfz] Bolivien (veraltet)
RB	[Kfz] Botswana
RBAC	Role Based Access Control
RBF	radial basis function
RBT	red-black tree
RC	release candidate
RC	release-critical
RC	remote control
RC	[Kfz:D] Landkreis Reichenbach
RC	[Kfz] China (Volksrepublik) (jetzt eigentlich Taiwan, aber in der VR China noch offiziell)
RC	[Kfz] Republik China (Taiwan)
RCA	[Kfz] Zentralafrikanische Republik
RCB	[Kfz] Republik Kongo
RCE	remote code execution
RCH	[Kfz] Chile
RCL	rotate left through carry
RCL	[Kfz] Kongo-Leopoldville (veraltet)
RCR	rotate right through carry
RCS	Revision Control System
RCT	[dental] root canal treatment
RCT	[dental] Wurzelkanalbehandlung (vulg. "Wurzelfüllung")
RCU	read-copy-update
RD	[Kfz:D] Kreis Rendsburg-Eckernförde
RDF	reality distortion field
RDF	resource description format
RDG	[Kfz:D] Landkreis Ribnitz-Damgarten
RDM	relational data model
RDMA	remote direct memory access
RE	(from Latin “back”, upon re-entering an IRC channel)
RE	(in Skat, countering a “Kontra”)
RE	Erdtaste
RE	Regional-Expreß
RE	regular expression
RE	[ccTLD] Réunion
RE	[Kfz:D] Kreis Recklinghausen
REG	[Kfz:D] Landkreis Regen
REGEN	regenerate
REH	[Kfz:D] Landkreis Rehau
REI	[Kfz:D] Stadt Bad Reichenhall im Landkreis Berchtesgadener Land
REI	[Kfz:D] Teilkreis Laufen im Landkreis Berchtesgadener Land
REST	representational state transfer
REXX	Restructured Extended Executor
RF	Flash-Taste für Amtsholung
RF	radio frequency
RFA	request for adoption
RFA	request for assistance
RFB	request for boot
RFC	request for comments
RFD	request for discussion
RFE	request for enhancements
RFH	request for help
RFI	radio frequency interference
RFO	request for ownership
RFP	request for package/packaging
RFP	request for packaging
RFS	request for sponsorship
RG	[Kfz:D] Landkreis Riesa-Großenhain
RG	[Kfz] Guinea
RGB	red green blue
RGR	roger
RH	read hit
RH	[Kfz:D] Landkreis Roth
RH	[Kfz] Haiti
RHEL	Red Hat Enterprise Linux
RHL	Red Hat Linux (now either RHEL or Fedora)
RHV	[Kfz] Burkina Faso (veraltet)
RI	Reverse Index (U+008D)
RI	U+008D REVERSE LINE FEED
RI	[Kfz:D] Landkreis Grafschaft Schaumburg
RI	[Kfz] Indonesien
RIA	rich internet application
RIB	routing information base
RICHARD	R (deutsches Funkalphabet)
RID	[Kfz:D] Landkreis Riedenburg
RIE	[Kfz:D] Landkreis Riesa
RIFF	Resource Interchange File Format
RIM	[Kfz] Mauretanien
RIP	requiescat in pacem
RIP	rest in peace
RIP	Routing Information Protocol
RIR	regional internet registry
RISC	reduced instruction set computing
RKM	ROM Kernel Manual
RKS	[Kfz] Kosovo
RL	real life
RL	[Kfz:D] Landkreis Rochlitz
RL	[Kfz] Libanon
RLC	rod length check
RLE	run length encoding
RLL	run length limited
RLO	right-to-left override
RLP	Radio Link Protocol
RM	read miss
RM	[Kfz:D] Landkreis Röbel/Müritz
RM	[Kfz] Madagaskar
RM	[Kfz] Rumänien (veraltet)
RMI	remote method invocation
RMM	[Kfz] Mali
RMPM	rapid memory power management
RMS	Richard Matthew Stallman
RMS	root mean square
RMW	read, modify, write
RN	[Kfz:D] Landkreis Rathenow
RN	[Kfz] Niger
RNG	random number generator
RNR	[Kfz] Nordrhodesien (veraltet)
RO	read-only
RO	[ccTLD] Rumänien
RO	[Kfz:D] kreisfreie Stadt und Landkreis Rosenheim
RO	[Kfz] Rumänien
ROD	[Kfz:D] Landkreis Roding
ROF	[Kfz:D] Landkreis Rotenburg (Fulda)
ROFL	Respekt, Originalposting fein lustig
ROFL	rolling on floor laughing
ROFLMAO	rolling on floor laughing my arse off
ROH	[Kfz:D] Landkreis Rotenburg (Hannover)
ROI	return on investment
ROK	[Kfz:D] Landkreis Rockenhausen
ROK	[Kfz] Südkorea
ROL	rotate left
ROL	[Kfz:D] Landkreis Rottenburg an der Laaber
ROM	read only memory
ROM	Request of Maintainer
ROMEO	R (International Radiotelephony Spelling Alphabet)
ROQA	Request of QA
ROR	rotate right
ROS	[Kfz:D] Landkreis Rostock
ROT	[Kfz:D] Landkreis Rothenburg ob der Tauber
ROTFL	Respekt, Originalposting tatsächlich fein lustig
ROTFL	rolling on the floor laughing
ROTFLBTCDICAJTTWADBSIHPWTRHITSBKABAYB	rolling on the floor laughing, biting the carpet, dancing in circles and jumping through the window almost dieing by smashing into hp who's then running horrified into the street being killed accidentally by a yellow bulldozer
ROTFLMAO	rolling on the floor laughing my arse off
ROTJ	[SW] Episode VI: Return of the Jedi
ROTOTILL	"nuke with a chain saw device", to die with extreme prejudice (see GC)
ROTS	[SW] Episode III: Revenge of the Sith
ROU	[Kfz] Uruguay
ROW	[Kfz:D] Landkreis Rotenburg (Wümme)
RP	responsible person
RP	Rheinland-Pfalz
RP	[Kfz:D] Rhein-Pfalz-Kreis
RP	[Kfz] Philippinen
RPC	remote procedure call
RPG	Rocket Propelled Grenade
RPG	role-playing game
RPL	requested privilege level
RPL	[Kfz:D] Rheinland-Pfalz, Landesregierung und Landtag
RPM	revolutions per minute
RR	railroad
RR	random replacement
RR	round robin
RS	Record Separator (U+001E)
RS	relay station
RS	U+001E ␞ INFORMATION SEPARATOR TWO
RS	[ccTLD] Serbien
RS	[Kfz:D] kreisfreie Stadt Remscheid
RS	[Kfz] Bosnisch-Serbische Republik (nicht offiziell)
RSA	Rivest, Shamir and Adleman
RSI	repetitive strain injury
RSIP	Realm Specific IP
RSL	[Kfz:D] Landkreis Roßlau
RSM	[Kfz] San Marino
RSN	real soon now
RSR	[Kfz] Simbabwe (veraltet)
RSR	[Kfz] Südrhodesien (veraltet)
RSS	really simple syndication
RSS	residual sum of squares
RST	reStructured Text
RSVP	please reply (french: respondez s'il vous plait)
RT	real time
RT	[Kfz:D] Landkreis Reutlingen
RT	[Kfz] Togo
RTBRFC	read the boring RFC
RTC	real time clock
RTC	real time computing
RTF	rich text format
RTFB	read the fine/fucking book
RTFC	read the fine/fucking code (see also UTFS)
RTFD	read the fine/fucking documentation
RTFJF	read the fine jargon file -- http://www.catb.org/~esr/jargon/
RTFM	read the fine/fucking manual
RTFMF	read the fucking Makefile
RTFMP	read the fine/fucking man page
RTFRFC	read the fine/fucking RFC
RTFS	read the fine/fucking source
RTFS	read the fine/fucking spec
RTFWS	read the fine/fucking web site
RTFWS	return to frankensteins wooly sheep
RTL	(kurz über Bodenniveau; die NICs genauso wie das TV-Programm)
RTL	Radio Téle Luxembourg
RTL	randomly transmitting link
RTL	Realtek (NIC vendor)
RTL	resistor-transistor logic
RTL	richtig träges LAN
RTL	U+200F RIGHT-TO-LEFT MARK
RTOS	real time operating system
RTP	real-time transport protocol
RTS	ready to send
RTS	request to send
RTSL	read the source, Luke (open source programming)
RTSL	real-time shading language (Stanford University)
RTSL	real-time systems laboratory
RTT	round time trip
RU	[ccTLD] Rußland
RU	[Kfz:D] Landkreis Rudolstadt
RU	[Kfz] Burundi
RUC	[Kfz] Kamerun (veraltet)
RUM	[Kfz] Rumänien (nicht offiziell)
RUMP	Runnable Userspace Meta Programs
RUP	rational unified process
RUS	[Kfz] Rußland
RV	[Kfz:D] Landkreis Ravensburg
RW	read-write
RW	[ccTLD] Ruanda
RW	[Kfz:D] Landkreis Rottweil
RWA	[Kfz] Ruanda
RWL	[Kfz:D] Nordrhein-Westfalen, Landesregierung und Landtag
RWM	read-write memory
RX	receive
RX	receiver
RY	[Kfz:D] kreisfreie Stadt Rheydt
RZ	Rechenzentrum (cf. DC)
RZ	[Kfz:D] Kreis Herzogtum Lauenburg
RÜD	[Kfz:D] Rheingau-Taunus-Kreis, Zulassungsstelle in Bad Schwalbach und Rüdesheim
RÜG	[Kfz:D] Altkreis Rügen im Landkreis Vorpommern-Rügen
S	[Kfz:D] Stadtkreis Stuttgart
S	[Kfz] Schweden
S.M.O.M.	[Kfz] Malteserorden (nicht offiziell)
S/MIME	Secure/Multipurpose Internet Mail Extensions
S/PDIF	Sony/Philips Digital Interface Format
S/T	self titled
S/W	schwarzweiß
S1	[Schule DE] Sekundarstufe 1 (Erprobungs- und Mittelstufe)
S2	[Schule DE] Sekundarstufe 2 (Oberstufe)
SA	security advisory
SA	security association
SA	source address
SA	structured analysis
SA	[ccTLD] Saudi-Arabien
SA	[Kfz] Saargebiet (veraltet)
SA	[Kfz] Saarland (veraltet)
SAAS	software as a service
SAB	[Kfz:D] Landkreis Saarburg
SACD	super audio compact disc
SACK	selective ACKnowledgement (TCP)
SAD	security association database
SAD	[Kfz:D] Landkreis Schwandorf
SAK	Secure Access Key
SAK	System Attention Key
SAL	shift arithmetically left (same as SHL)
SAL	system abstraction layer
SAL	[Kfz:D] Saarland, Landesregierung und Landtag
SAM	serial access memory
SAM	sum addressed memory
SAML	Security Assertion Markup Language
SAMUEL	S (deutsches Funkalphabet)
SAN	storage area network
SAN	[Kfz:D] Landkreis Stadtsteinach
SAP	ich sag's ja: SS, SA, SAP
SAP	Salary Appreciation Program.
SAP	Sammelstelle Arbeitsloser Physiker
SAP	Sanduhr-Anzeige-Programm
SAP	Save and pray
SAP	Schafft Arbeits-Plätze
SAP	Schlimmstes Aller Probleme der Deutschen Telekom
SAP	Schrecken, Angst und Panik
SAP	Secondary Audio Programming
SAP	See Administrators Panic
SAP	See After Playing
SAP	Service Access Point
SAP	Sex And Pornography
SAP	Sicherer Arbeitsplatz
SAP	Sichert Arbeits-Plätze
SAP	Simple Application Program
SAP	Software Ante Portas
SAP	Software aus Pakistan
SAP	Solves All Problems (before purchase)
SAP	Sorgen, Angst & Panik
SAP	Spend And Pray!
SAP	Spitze aller Programmierkunst
SAP	Start Adding Patches
SAP	Stop All Production
SAP	Submit And Pray
SAP	Such A Pain (after purchase)
SAP	Suchen Anklicken Pause
SAP	Suffer After Purchase
SAP	Suffer and Pay
SAP	Summe Aller Probleme
SAP	Systeme, Anwendungen, Programme in der Datenverarbeitung
SAPIC	streamlined advanced programmable interrupt controller
SAR	Java™ Service Archive (similar to EAR, plus service.xml)
SAR	search and rescue
SAR	shift arithmetically right (copies leftmost bit)
SAR	some assembly required
SAR	store access rights
SAS	Serial Attached SCSI
SAS	Special Air Service
SASD	structured analysis, structured design
SASI	Shugart Associates System Interface (predecessor to SCSI)
SASL	simple authentication [and] security layer (neither simple nor secure)
SATA	satan
SATA	serial advanced technology attachment
SAU	[Kfz] Republik Südafrika (veraltet)
SAU	[Kfz] Südafrika (veraltet)
SAW	[Kfz:D] Altmarkkreis Salzwedel
SB	sound blaster
SB	[ccTLD] Salomonen
SB	[Kfz:D] Regionalverband Saarbrücken ohne die Stadt Völklingen
SB	[Kfz] Serbien (veraltet)
SBA	[gc] should be archived (needs archived)
SBB	Schweizerische Bundesbahnen (CFF, FFS, VFS, SFR)
SBC	single-board computer
SBCS	single-board computer system
SBCS	single-byte character set
SBG	[Kfz:D] Landkreis Strasburg
SBK	[Kfz:D] Landkreis Schönebeck
SBU	standard build unit
SBZ	should be zero
SBZ	Sowjetische Besatzungszone
SC	scilicet (evidently, naturally; used as namely)
SC	store conditional
SC	[ccTLD] Seychellen
SC	[Kfz:D] Landkreis Schwabach
SCA	source code analyzer
SCADA	supervisory control and data acquisition
SCAS	Site Central Authorisation Service
SCC	second-class citizen
SCC	single chip cloud
SCC	source code control
SCC	strongly connected component
SCCP	Signalling Connection Control Part
SCCS	Source Code Control System
SCG	[Kfz] Montenegro (veraltet)
SCG	[Kfz] Serbien (veraltet)
SCG	[Kfz] Serbien und Montenegro (veraltet)
SCHULE	SCH (deutsches Funkalphabet)
SCI	scalable coherent interface
SCI	system control interrupt
SCI	U+009A SINGLE CHARACTER INTRODUCER
SCIL	scilicet (evidently, naturally; used as namely)
SCM	software configuration management
SCM	source code management
SCNR	schulljung, connte nit rückhalten
SCNR	sorry, could not resist
SCP	secure copy
SCSI	Small Computer System Interface
SCSU	Standard Compression Scheme for Unicode
SCTP	Stream Control Transmission Protocol
SCZ	[Kfz:D] Landkreis Schleiz
SD	[ccTLD] Sudan
SD	[Kfz] Swasiland
SDH	Synchrone Digitale Hierarchie
SDH	[Kfz:D] Landkreis Sondershausen
SDI	symbol deinterleave
SDK	software development kit
SDL	Simple Declarative Language
SDL	[Kfz:D] Landkreis Stendal
SDR	software defined radio
SDRAM	synchronous dynamic random access memory
SDT	syntax-directed translation
SDT	[Kfz:D] Stadtkreis Schwedt/Oder
SE	Software Engineer
SE	Support Engineer
SE	[ccTLD] Schweden
SE	[Kfz:D] Kreis Segeberg
SE	[Kfz] Irland (veraltet)
SEB	[Kfz:D] Landkreis Sebnitz
SECAM	Something Essentialy Contrary to the American Method
SED	smoke emitting diode
SED	stream editor
SEE	[Kfz:D] Landkreis Seelow
SEF	[Kfz:D] Landkreis Scheinfeld
SEGV	segmentation violation
SEL	[Kfz:D] kreisfreie Stadt Selb
SEO	search engine optimisation
SEP	someone else's problem
SERP	search engine results page
SETTESEVEN	7 (International Radiotelephony Spelling Alphabet)
SF	Sourcefrog
SF	[Kfz:D] Landkreis Oberallgäu
SF	[Kfz:D] Landkreis Sonthofen
SF	[Kfz] Finnland (veraltet)
SFA	sweet fuck all
SFA	[Kfz:D] Landkreis Soltau-Fallingbostel
SFAICT	so far as I can tell
SFB	[Kfz:D] Landkreis Senftenberg
SFC	sequential function chart
SFI	simple firmware interface
SFR	Swiss federal railways (SBB)
SFT	[Kfz:D] Landkreis Staßfurt
SFTP	Serial File Transfer Protocol
SFTP	Simple File Transfer Protocol
SFTP	SSH File Transfer Protocol
SFW	safe for work
SFW	Sun freeware
SG	[ccTLD] Singapur
SG	[Kfz:D] kreisfreie Stadt Solingen
SGCI	Single Graphic Character Introducer (U+0099)
SGH	[Kfz:D] Landkreis Sangerhausen
SGML	Standard Generalised Markup Language
SGP	[Kfz] Singapur
SGRAM	synchronous graphics random access memory
SH	Bourne Shell
SH	POSIX Shell
SH	Schleswig-Holstein
SH	Shell
SH	[ccTLD] St. Helena
SH	[Kfz:D] Schleswig-Holstein, Landesregierung und Landtag
SHA	[Kfz:D] Landkreis Schwäbisch Hall
SHG	[Kfz:D] Landkreis Schaumburg
SHID	slaps head in disgust
SHIT	FSF - Shit happens -- http://www.fsf.org/fun/jokes/shit-happens.html
SHIT	FSF - Shit part 2 -- http://www.fsf.org/fun/jokes/more-shit.html
SHIT	FSF - Shit part 3 -- http://www.fsf.org/fun/jokes/religions.html
SHK	[Kfz:D] Saale-Holzland-Kreis
SHL	shift left
SHL	[Kfz:D] Landkreis Suhl
SHOK	smashing head on keyboard
SHR	shift right
SHS	[Kfz] Königreich der Serben, Kroaten und Slowenen (veraltet)
SHY	U+00AD SOFT HYPHEN
SI	source index
SI	Système International d'Unités
SI	U+000F ␏ SHIFT IN
SI	[ccTLD] Slowenien
SI	[Kfz:D] Kreis Siegen-Wittgenstein
SIC	thus, such (in quotes: really written like that, including errors)
SIEMENS	Schon Im Ersten Moment Eigenartiger Nichtfunktionierender Scheiß
SIEMENS	Sicher Ist Eins: Man Erhält Nur Schrott
SIEMENS	Super Im Ersten Moment, Erst Nachher Scheiße
SIERRA	S (International Radiotelephony Spelling Alphabet)
SIFS	short inter-frame space
SIG	[Kfz:D] Landkreis Sigmaringen
SIGABRT	(#6) Abort trap
SIGALRM	(#14) Alarm clock
SIGBUS	(#10) Bus error
SIGCHLD	(#20) Child exited
SIGCONT	(#19) Continued
SIGEMT	(#7) EMT trap
SIGFPE	(#8) Floating point exception
SIGHUP	(#1) Hangup
SIGILL	(#4) Illegal instruction
SIGINFO	(#29) Information request
SIGINT	(#2) Interrupt
SIGIO	(#23) I/O possible
SIGKILL	(#9) Killed
SIGNAL	Stallman is (a) GNU, not a Lawyer
SIGPIPE	(#13) Broken pipe
SIGPROF	(#27) Profiling timer expired
SIGPWR	(Linux) Power failure
SIGQUIT	(#3) Quit
SIGSEGV	(#11) Segmentation fault
SIGSTKFLT	(Linux) Stack fault
SIGSTOP	(#17) Suspended (signal)
SIGSYS	(#12) Bad system call
SIGTERM	(#15) Terminated
SIGTRAP	(#5) Trace/Breakpoint trap
SIGTSTP	(#18) Suspended
SIGTTIN	(#21) Stopped (tty input)
SIGTTOU	(#22) Stopped (tty output)
SIGURG	(#16) Urgent I/O condition
SIGUSR1	(#30) User defined signal #1
SIGUSR2	(#31) User defined signal #2
SIGVTALRM	(#26) Virtual timer expired
SIGWINCH	(#28) Window size changes
SIGXCPU	(#24) CPUtime limit exceeded
SIGXFSZ	(#25) Filesize limit exceeded
SIM	Subscriber Interface Module
SIM	[Kfz:D] Landkreis Simmern
SIM	[Kfz:D] Rhein-Hunsrück-Kreis
SIMCA	sitting in my chair amused
SIMD	single instruction, multiple data
SIMM	single inline memory module
SIN	Sinus
SIP	Session Initiation Protocol
SIR	signal-to-interference ratio
SIR	slow infrared
SISD	single instruction, single data
SITD	still in the dark
SIYH	sooner if you help
SJ	[ccTLD] Svalbard und Jan Mayen (auch .no)
SK	[ccTLD] Slowakei
SK	[Kfz:D] Saalekreis
SK	[Kfz] Sarawak (veraltet)
SK	[Kfz] Slowakei
SL	Saarland
SL	[ccTLD] Sierra Leone
SL	[Kfz:D] Kreis Schleswig-Flensburg
SL	[Kfz] Syrien und Libanon (veraltet)
SLA	Service Level Agreement
SLAAC	statless address autoconfiguration
SLC	single-level cell
SLD	second-level domain
SLDRAM	synchronous-link dynamic random access memory
SLE	[Kfz:D] Kreis Schleiden
SLE	[Kfz] Sierra Leone (nicht offiziell)
SLF	[Kfz:D] Landkreis Saalfeld-Rudolstadt
SLG	[Kfz:D] Landkreis Saulgau
SLI	scalable link interface
SLI	scan-line interleave
SLIP	Serial Line IP
SLK	[Kfz:D] Salzlandkreis
SLN	[Kfz:D] Landkreis Schmölln
SLO	[Kfz] Slowenien
SLOB	source BLOB
SLOC	source lines of code
SLR	single-lens reflex camera
SLRU	segmented LRU
SLS	[Kfz:D] Landkreis Saarlouis
SLZ	[Kfz:D] Landkreis Bad Salzungen
SLZ	[Schule DE] Selbstlernzentrum
SLÜ	[Kfz:D] Landkreis Schlüchtern
SM	[ccTLD] San Marino
SM	[Kfz:D] Landkreis Schmalkalden-Meiningen
SM	[Kfz] Siam (veraltet)
SMA	smart memory access
SMAF	system management action field
SMART	self-monitoring analysis and reporting technology
SMB	Server Message Block
SMBFS	Server Message Block File System (see CIFS)
SMBIOS	system management BIOS
SMC	system management controller
SME	[Kfz] Suriname
SMH	shaking my head
SMI	structure of management information
SMI	system management interrupt
SMIDF	schieß mir in den Fuß
SMIDF	simple-minded incompetent drooling fool
SMIME	(see S/MIME)
SMLSFB	so many losers, so few bullets
SMM	system management mode
SMOM	[Kfz] Malteserorden (nicht offiziell)
SMOP	simple matter of programming
SMP	symmetric multiprocessing
SMSCB	Short Message Service Cell Broadcast
SMT	simultaneous multithreading
SMTP	Simple Mail Transfer Protocol
SMU	system management unit
SMÜ	[Kfz:D] Landkreis Schwabmünchen
SN	Sachsen
SN	[ccTLD] Senegal
SN	[Kfz:D] Landkreis Schwerin
SN	[Kfz] Senegal
SNAFU	situation normal, all fucked up
SNB	[Kfz] Nordborneo (veraltet)
SNCB	Société Nationale des Chemins de fer Belges
SNCF	Société Nationale des Chemins de fer français
SNDCP	Sub-Network Dependant Convergence Protocol
SNERT	snot-nosed egotistical rude teenager
SNH	[Kfz:D] Landkreis Sinsheim
SNMP	security's not my problem
SNMP	Simple Network Management Protocol
SNMP	sorry, not my problem
SNR	signal-to-noise ratio
SO	shared object file (cf. DLL)
SO	significant other
SO	U+000E ␎ SHIFT OUT
SO	[ccTLD] Somalia
SO	[Kfz:D] Kreis Soest
SO	[Kfz] Slowakei (veraltet)
SO	[Kfz] Somalia
SOA	Service Oriented Architecture
SOA	service oriented architecture
SOA	Source of Authority
SOA	Start Of Authority (DNS record type)
SOA	STD (dutch: Seksueel Overdraagbare Aandoening)
SOAP	Simple Object Access Protocol
SOB	son of [a] bitch
SOB	[Kfz:D] Landkreis Schrobenhausen
SOC	system on chip
SOE	Standard Operating Environment (a spec, image, or build process that attempts (usually unsuccessfully) to produce identical machines, typically under the management of a central authority that does its damnedest to get in the way of useful work)
SOF	start of frame
SOFTDEP	Softupdates
SOG	[Kfz:D] Landkreis Schongau
SOH	U+0001 ␁ START OF HEADING
SOHO	small office / home office
SOK	[Kfz:D] Saale-Orla-Kreis
SOL	serial over LAN
SOL	shit out [of] luck
SOL	[Kfz:D] Landkreis Soltau
SOL	[Kfz] Salomonen
SOL	[Schule DE] Soziales Lernen
SON	[Kfz:D] Landkreis Sonneberg
SONET	Synchronous Optical Network (now SDH)
SOP	standard operating procedure
SOS	U+0098 START OF STRING
SOXISIX	6 (International Radiotelephony Spelling Alphabet)
SP	service pack
SP	spelling
SP	stack pointer
SP	U+0020 ␠ SPACE
SP	[Kfz:D] Landkreis Speyer
SP	[Kfz] Somalia (veraltet)
SPA	Start of Protected Area (U+0096)
SPA	U+0096 START OF GUARDED AREA
SPARC	Scalable Processor Architecture
SPARK	annotated subset of Ada for formal verification
SPARQL	SPARQL Protocol and RDF Query Language
SPB	[Kfz:D] Landkreis Spremberg
SPD	security policy database
SPD	serial presence detect
SPDIF	cf. S/PDIF
SPE	signal processing engine (powerpcspe)
SPE	synergistic processing element (powerpc-spu AKA cell)
SPF	Sender Policy Framework
SPI	serial peripheral interface
SPI	stateful packet inspection
SPIT	spam over internet telephony
SPMD	single process, multiple data
SPN	[Kfz:D] Landkreis Spree-Neiße
SPQR	senatus populusque romanus
SPR	special purpose register
SPR	[Kfz:D] Landkreis Springe
SPT	sectors per track
SQ	[Kfz] Slowakei (veraltet)
SQA	software quality assurance
SQL	Structured Query Language
SR	[ccTLD] Suriname
SR	[Kfz:D] kreisfreie Stadt Straubing und Landkreis Straubing-Bogen
SR	[Kfz] Südrhodesien (veraltet)
SRAM	static random access memory
SRB	[Kfz:D] Landkreis Strausberg
SRB	[Kfz] Serbien
SRC	sample rate conversion
SRGG	secure random number generator
SRNG	stretched random number generator
SRO	[Kfz:D] Landkreis Stadtroda
SRU	stable release update
SS	self-snoop
SS	SPARCstation
SS	stack segment
SS	[ccTLD] Südsudan
SS	[Kfz] Straits Settlements (veraltet)
SS1	SPARCstation 1
SS10	SPARCstation 10
SS2	SPARCstation 2
SS2	U+008E SINGLE SHIFT TWO
SS20	SPARCstation 20
SS3	U+008F SINGLE SHIFT THREE
SS4	SPARCstation 4
SS5	SPARCstation 5
SS7	Signalisierungssystem Nummer 7
SS7	signalling system #7
SSA	U+0086 START OF SELECTED AREA
SSB	single-sideband modulation
SSD	solid state drive
SSD	[Kfz] Südsudan
SSE	streaming SIMD extensions
SSFDC	solid state floppy disc card
SSH	secure shell
SSI	server side includes
SSIA	subject says it all
SSL	secure sockets layer
SSP	stack smashing protection
SSTO	single stage to orbit
ST	Sachsen-Anhalt
ST	Sixteen-Thirtytwo (Atari)
ST	Star Trek
ST	U+009C STRING TERMINATOR
ST	[ccTLD] São Tomé und Príncipe
ST	[Kfz:D] Kreis Steinfurt
ST	[Kfz:D] Landkreis Stade
ST:DS9	[ST] Deep Space Nine
ST:ENT	[ST] Enterprise
ST:TAS	[ST] The Animated Series
ST:TNG	Star Trek: The Next Generation
ST:TOS	[ST] The Original Series
ST:VOY	[ST] Voyager
STA	[Kfz:D] Landkreis Starnberg
STB	[Kfz:D] Landkreis Sternberg
STC	software thermal control
STD	Sexually Trasmittable Disease
STD	Standard
STD	state transition diagram
STD	[Kfz:D] Landkreis Stade
STD	[Schule DE] Studiendirektor
STE	[Kfz:D] Landkreis Staffelstein
STF	[gc] second to find
STFA	search the fscking archives
STFA	search the fucking archives
STFU	search the fine usenet
STFU	search the fucking usenet
STFU	shut the fuck up
STFW	search the fucking web
STGH	Staatsgerichtshof
STH	[Kfz:D] Landkreis Schaumburg-Lippe
STL	[Kfz:D] Landkreis Stollberg
STLD	sponsored top-level domain
STM	STMicroelectronics
STM	Synchronous Transport Module (SDH)
STMT	statement
STO	[Kfz:D] Landkreis Stockach
STOP	(full stop, period) . (International Radiotelephony Spelling Alphabet)
STP	shielded twisted pair
STP	Spanning Tree Protocol
STP	[Kfz] São Tomé und Príncipe
STR	[Schule DE] Studienrat
STS	U+0093 SET TRANSMIT STATE
STUBO	[Schule DE] Studien- und Berufsorientierung
STVO	[Kfz:D] Straßenverkehrsordnung
STW	search the web
STX	U+0002 ␂ START OF TEXT
SU	Sau unterwegs
SU	Suche Unfall
SU	[ccTLD] die ehemalige Sowjetunion (heute von Rußland weiterverwendet)
SU	[Kfz:D] Rhein-Sieg-Kreis (in Siegburg)
SU	[Kfz] Sowjetunion (veraltet)
SUB	U+001A ␚ SUBSTITUTE
SUD	[Kfz] Sudan (nicht offiziell)
SUD	[Kfz] Südsudan (veraltet)
SUL	[Kfz:D] Landkreis Sulzbach-Rosenberg
SUS	Single UNIX® Specification
SUS	stupid user syndrome
SUSE	Software- und Systementwicklung (now Novell ):
SUT	system under test
SUX	sucks
SUX2BU	sucks to be you
SV	[ccTLD] El Salvador
SVG	scalable vector graphics
SVGA	super video graphics array
SVM	secure virtual machine
SVM	support vector machine
SVP	please (french: s'il vous plaît)
SVR	System V Release
SVR2	System V Release 2
SVR3	System V Release 3
SVR4	System V Release 4
SVWS-NRW	[Schule DE] Obligatorische Schulverwaltungssoftware des Landes Nordrhein-Westfalen
SW	schwarzweiß
SW	Software
SW	Star Wars
SW	switch
SW	[Kfz:D] kreisfreie Stadt und Landkreis Schweinfurt
SWA	[Kfz:D] Untertaunuskreis
SWA	[Kfz] Namibia (veraltet)
SWA	[Kfz] Südwestafrika (veraltet)
SWAG	silly, wild-assed guess
SWAG	[gc] Some say this is short for "Stuff We All Get." Swag means the trade items that we swap at geocaches and carry in our backpacks.
SWAHBI	silly, wild-assed hare-brained idea
SWB	Stadtwerke Bonn
SWB	stehen, warten, beten
SWB	Stillstand wegen Bombe
SWF	Shockwave Flash
SWFG	search with fucking Google
SWIG	simplified wrapper [and] interface generator
SWMBO	she who must be obeyed
SX	[ccTLD] Sint Maarten und Bonaire
SY	[ccTLD] Syrien
SY	[Kfz:D] Landkreis Grafschaft Hoya
SY	[Kfz] Seychellen
SYN	U+0016 ␖ SYNCHRONOUS IDLE
SYNC	synchronise
SYR	symbol timing recovery
SYR	[Kfz] Syrien
SYS	see you soon
SZ	[ccTLD] Swasiland
SZ	[Kfz:D] kreisfreie Stadt Salzgitter
SZB	[Kfz:D] Landkreis Schwarzenberg
SÄK	[Kfz:D] Landkreis Säckingen
SÖM	[Kfz:D] Landkreis Sömmerda
SÜW	[Kfz:D] Landkreis Südliche Weinstraße
T	true (boolean 1)
T	[Kfz] Thailand
T A	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Augsburg
T BA	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Bamberg
T BH	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Baumholder
T BR	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Bruchsal
T BW	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte
T GK	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Geilenkirchen
T GR	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Grafenwöhr
T H	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Heidelberg
T HS	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Hohenfels
T I	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Ingolstadt
T K	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Kaiserslautern
T MA	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Mannheim
T S	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Stuttgart
T SP	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Spangdahlem
T SW	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Schweinfurt
T W	[Kfz:D] temporäres Kennzeichen der US-Streitkräfte Wiesbaden
T&S	Tasks and Skills
T4TC	[gc] thanks for the cache
TA	teaching assistant
TA	test assertion
TA	thanks (pre-net slang, pronounced tar)
TA	transmitter address
TAC	(Cisco) Technical Assistance Center
TAI	international atomic time
TAN	Tangēns
TANGO	enemy
TANGO	T (International Radiotelephony Spelling Alphabet)
TANSTA	there ain't (no) such thing as ...
TANSTAAFL	there ain't no such thing as a free lunch
TAO	track at once
TAOCP	The Art of Computer Programming
TAP	Test Anything Protocol
TARGA	Truevision Advanced Raster Graphics Adapter
TAS	Star Trek: The Animated Series
TAS	test and set
TATMWTDI	there are too many ways to do it (in Perl)
TB	terabyte
TB	[gc] travel bug (also used as common name for trackable items, cf. GC)
TBA	to be announced
TBB	[Kfz:D] Landkreis Tauberbischofsheim
TBB	[Kfz:D] Main-Tauber-Kreis
TBC	to be continued
TBD	to be decided
TBD	to be determined
TBD	to be discussed
TBD	to be done
TBF	to be fixed
TBH	to be honest
TBOMK	the best of my knowledge
TC	[ccTLD] Turks- und Caicosinseln
TC	[gc] Terracache
TC	[Kfz] Kamerun (veraltet)
TCAP	Transaction Capabilities Application Part
TCB	taking care of business
TCB	trace capture buffer
TCB	trusted computing base
TCC	thermal control circuit
TCL	tool command language
TCO	taken care of
TCP	Transmission Control Protocol
TCQ	tagged command queueing
TCSH	Tenex C Shell
TD	table data (in HTML)
TD	[ccTLD] Tschad
TD	[Kfz] Trinidad und Tobago (veraltet)
TD	[Kfz] Tschad
TDC	time [to] digital converter
TDD	test driven development
TDD	time division duplex
TDM	time division multiplexing
TDMA	time division multiple access
TDO	[Kfz:D] Landkreis Nordsachsen
TDOA	time difference of arrival
TDP	thermal design point
TDP	thermal design power
TDR	Theo de Raadt -- http://theos.com/
TE	[Kfz:D] Kreis Tecklenburg
TEAM	toll, ein Anderer macht's!
TECO	Text Editor and Corrector
TEL	(I’m on the) telephone
TEL	[sTLD] telecommunication (Kontaktdaten als NAPTR und TXT RR im DNS)
TELE	(I’m on the) telephone
TELE	Ich telephoniere!
TERRATHREE	3 (International Radiotelephony Spelling Alphabet)
TESB	[SW] Episode V: The Empire Strikes Back
TET	[Kfz:D] Landkreis Teterow
TETRA	four-
TETRA	Terrestrial Trunked Radio
TETRA	Trans-European Trunked Radio (old)
TF	... the fuck
TF	[ccTLD] Französische Süd- und Antarktisgebiete
TF	[Kfz:D] Landkreis Teltow-Fläming
TFB	too fucking bad
TFSMIF	Thank the Flying Spaghetti Monster It's Friday
TFT	thin film transistor
TFTC	[gc] thanks for the cache
TFTH	[gc] thanks for the hunt
TFTP	Trivial File Transfer Protocol
TG	[ccTLD] Togo
TG	[Kfz:D] Landkreis Torgau-Oschatz
TG	[Kfz] Togo (nicht offiziell)
TGA	Truevision TGA (TARGA) bitmap
TGIF	Thank God It's Friday
TGV	Train à grande vitesse
TH	table head (in HTML)
TH	Thüringen
TH	[ccTLD] Thailand
THEODOR	T (deutsches Funkalphabet)
THGTTG	the hitchhiker's guide to the galaxy
THL	[Kfz:D] Thüringen, Landesregierung und Landtag
THNX	thanks
THRB	thumb hits reset button
THW	[Kfz:D] Dienstfahrzeuge der Bundesanstalt Technisches Hilfswerk
THX	thanks
TIA	thanks in advance
TIAS	try it and see
TIAVP	this is a volunteer project
TIC	tongue in cheek
TIDH	Tausender in die Hand
TIDH	Tritt in den Hintern
TIF	(file extension for TIFF files)
TIFF	tagged image file format
TIFF	thousand incompatible file formats
TIL	today I learned
TIMTOWTDI	there is more than one way to do it (perl sucks, now we all know why)
TINASOTODP	this is not a statement of the official Debian position
TINC	there is no cabal
TINLA	this is not legal advice
TINSTA	there is no such thing as ...
TINWIS	this is not what I said
TIOOWTDI	There is only one way to do it
TIR	[Kfz:D] Landkreis Tirschenreuth
TITS	try it to see
TJ	[ccTLD] Tadschikistan
TJ	[Kfz] Tadschikistan
TJM	that's just me
TK	Telekommunikation
TK	temporal key
TK	[ccTLD] Tokelau
TL	[ccTLD] Osttimor (zuvor .tp)
TL	[Kfz] Osttimor
TL;DR	too long; didn't read
TL;DS	too long; didn't see
TLA	three letter acronym
TLA	tom lord's arch
TLA	top level aggregator
TLB	transition lookaside buffer
TLB	translation lookaside buffer
TLC	tender loving care
TLD	top-level domain
TLDR	too long, didn't read
TLS	thread-local storage
TLS	tiny little sister
TLS	transport layer security
TLT	[Kfz] Freies Territorium Triest (veraltet)
TM	thanks much (lilo lingo, from IRC)
TM	thermal monitor
TM	trademark
TM	trust me
TM	Turing machine
TM	[ccTLD] Turkmenistan
TM	[Kfz] Turkmenistan
TMA	too many abbreviations
TMBO	this might be offensive
TMDS	transition minimised differential signaling
TMG	too much government
TMI	too much information
TMJ	temporomandibular joint
TMK	to my knowledge
TMN	[Kfz] Turkmenistan (veraltet)
TMO	timeout
TMTOWTDI	there's more than one way to do it
TN	[ccTLD] Tunesien
TN	[Kfz] Tunesien
TNF	The NetBSD® Foundation
TNF	Tinnef (german dialect)
TNG	[ST] The Next Generation
TNLN	[gc] took nothing, left nothing (also: N/T)
TNLNSL	[gc] took nothing, left nothing, signed log (also: N/T)
TNX	thanks
TO	[ccTLD] Tonga
TO	[Kfz:D] Landkreis Torgau-Oschatz
TOC	table of contents
TOCTOU	time of check to time of use
TOCTTOU	time of check to time of use
TOD	time of day
TOEFL	test of english as a foreign language
TOFU	soy bean based edible
TOFU	Text oben, Fullquote unten
TOFU	TOp-posting and FUll-quoting
TOFU	[DE] Aber wie mache ich es richtig? => http://www.afaik.de/usenet/faq/zitieren/
TOFU	[EN] But how to do it right? => http://www.netmeister.org/news/learn2quote.html
TOFU	[NL] Maar hoe doe ik dat correct? => http://www.briachons.org/art/quote/
TOH	to other half
TOM	Tunnelling of Messages
TON	[Kfz] Tonga (nicht offiziell)
TOS	Star Trek: The Original Series
TOS	terms of service
TOS	the (atari) operating system
TOS	trusted operating system
TOS	type of service
TP	transaction processing
TP	[ccTLD] Osttimor (heute .tl)
TP	[Kfz:D] Landkreis Templin
TPM	transactions per minute
TPM	trusted platform module
TPM	[SW] Episode I: The Phantom Menace
TPR	task priority register
TPS	transmission parameters signaling
TPTB	the person to bug
TPTB	the powers that be
TR	table row (in HTML)
TR	task register
TR	token ring
TR	[ccTLD] Türkei
TR	[Kfz:D] kreisfreie Stadt Trier und Landkreis Trier-Saarburg
TR	[Kfz] Türkei
TRAU	Transcoding Rate and Adaption Unit
TRAVEL	[sTLD] travel (Reiseindustrie)
TRI	three-
TRL	timing recovery loop
TRNG	true random number generator
TRT	the right thing
TS	terminal services
TS	time series
TS	time stamp
TS	transport stream
TS	[Kfz:D] Landkreis Traunstein
TSC	time stamp counter
TSD	time stamp disable
TSL	test, set, lock
TSO	time sharing option
TSP	time synchronisation protocol
TSP	Time-Stamp Protocol
TSP	traveling salesman problem
TSP	tunnel service provider
TSP	Tunnel Setup Protocol
TSR	terminate and stay resident
TSS	task state segment
TSS	Time-Sharing System
TT	Thirtytwo-Thirtytwo (Atari)
TT	[ccTLD] Trinidad und Tobago
TT	[Kfz:D] Landkreis Tettnang
TT	[Kfz] Togo (veraltet)
TT	[Kfz] Trinidad und Tobago
TTBOMK	to the best of my knowledge
TTF	[gc] third to find
TTFN	ta ta for now
TTFSMIF	Thank The Flying Spaghetti Monster It's Friday
TTL	time to live
TTL	transistor-transistor logic
TTM	Atari 19″ 1280x960 Monochrome Monitor
TTM	to the moderator
TTM	translation table maps
TTM194	TTM with a series bug (changing brightness of its own)
TTM195	TTM without the TTM194 bug
TTT	thought that too
TTY	teletype [terminal]
TTYL	talk to you later
TTYL8ER	tty (read) you later [usenet]
TTYS	talk to you soon
TU	[Kfz] Trengganu (veraltet)
TUI	terminal user interface
TUI	textual/text-based user interface
TUP	Telephone User Part
TUT	[Kfz:D] Landkreis Tuttlingen
TUV	[Kfz] Tuvalu
TV	television
TV	[ccTLD] Tuvalu
TW	Tolle Wurst
TW	Torwartwechsel
TW	[ccTLD] Republik China
TWAIN	thing without an interesting name
TWDT	the whole damn thing
TWIAVBP	the world is a very big place
TWKMHNNOARN	those who know me have no need of a real name
TWKMHNNOMRN	those who know me have no need of my real name
TX	transmit out
TX	transmitter
TY	thank you
TYS	told you so
TYVM	thank you very much
TZ	time zone
TZ	[ccTLD] Tansania
TÖL	[Kfz:D] Landkreis Bad Tölz-Wolfratshausen
TÖN	[Kfz:D] Kreis Eiderstedt
TÜ	[Kfz:D] Landkreis Tübingen
U	u, you
U	[Kfz] Uruguay (veraltet)
U/L	upload
UA	[ccTLD] Ukraine
UA	[Kfz] Ukraine
UAC	user access control
UAC	user account control
UAE	[Kfz] Vereinigte Arabische Emirate
UART	universal asynchronous receiver/transmitter
UAT	user acceptance testing
UB	Undefined Behaviour
UBUNTU	I am too stupid to configure Debian.
UC	uncacheable
UCC	Underhanded C Contest
UCS	uniform-cost search
UDDI	Universal Description, Discovery, and Integration protocol
UDMA	Ultra-DMA
UDO	ultra density optical (storage)
UDP	User Datagram Protocol
UE	[Kfz:D] Landkreis Uelzen
UEM	[Kfz:D] Landkreis Ueckermünde
UER	[Kfz:D] Landkreis Uecker-Randow
UFF	[Kfz:D] Landkreis Uffenheim
UFS	Unix File System
UG	[ccTLD] Uganda
UGT	Universal Greeting Time -- http://thinkmoult.com/ugt.html
UH	[Kfz:D] Unstrut-Hainich-Kreis
UI	unit interval
UI	user interface
UID	unique identifier
UID	user identifier
UK	[ccTLD] Vereinigtes Königreich
UKSF	United Kingdom Special Forces
UL	upload
UL	[Kfz:D] Stadtkreis Ulm und Alb-Donau-Kreis
ULB	Université libre de Bruxelles (FOSDEM is at Campus Solbosch, not Main Campus!)
ULRICH	U (deutsches Funkalphabet)
UM	[ccTLD] United States Minor Outlying Islands (lief bis 2008)
UM	[Kfz:D] Landkreis Uckermark
UMA	uniform memory access
UMA	upper memory area
UMAC	message authentication code based on universal hashing
UMB	upper memory block
UML	unified modeling language
UMPC	ultra-mobile PC
UMR	uninitialised memory read
UMTS	Universal Mobile Telecommunications System
UN	[Kfz:D] Kreis Unna
UNAONE	1 (International Radiotelephony Spelling Alphabet)
UNI	one-
UNIFORM	U (International Radiotelephony Spelling Alphabet)
UNIX	(bootloader for games written by Ken Thompson et al.)
UNIX	(Uniplexed Information and Computing System, pun on MULTICS)
UOR	Urgent Operational Requirement
UPC	uniform product code
UPC	unit of processing capacity
UPC	unit production cost
UPC	universal product code
UPLOAD	to create load on the server
UPNP	universal plug and play
UPS	uninterruptible power supply
UPS	united parcel service
UPS	Universal Polar Stereographic coordinate system (UTM zones A, B, Y, Z)
UPS	[gc] unnatural pile of sticks
URI	uniform resource identifier
URL	uniform resource locator
URN	uniform resource name
US	U+001F ␟ INFORMATION SEPARATOR ONE
US	Unit Separator (U+001F)
US	[ccTLD] Vereinigte Staaten
US	[Kfz] Vereinigte Staaten von Amerika (veraltet)
USA	[Kfz] Vereinigte Staaten von Amerika
USART	universal synchronous/asynchronous receiver/transmitter
USB	universal serial bus
USI	[Kfz:D] Landkreis Usingen
USNG	United States National Grid (NAD83)
USP	Universale Selbstladepistole
USR	Unix Source Repository
USR	Unix System Resources
USWC	uncacheable speculative write combining
UT	unit test
UT	universal time
UTC	coordinated universal time
UTF	Unicode Translation Form
UTFG	use the fscking google
UTFS	use the fine source
UTFS	use the fucking source
UTLD	unsponsored top-level domain
UTM	Universal Transverse Mercator (nowadays WGS84 or ETRS89 which Δ<1m; historically different)
UTP	unshielded twisted pair
UTRTFTJ	use the right tool for the job
UTSL	use the source, Luke (open source programming)
UUCP	Unix-to-Unix Copy Protocol
UUID	universally unique identifier
UUOC	useless use of cat
UUT	unit under test
UV	ultraviolet
UVZ	Universelle Verpeilerzeit
UX	user experience
UY	[ccTLD] Uruguay
UZ	[ccTLD] Usbekistan
UZ	[Kfz] Usbekistan
V	[Kfz:D] Vogtlandkreis
V	[Kfz] Vatikanstaat
VA	vertical alignment
VA	virtual address
VA	volt-ampere
VA	[ccTLD] Vatikanstadt
VAC	vacation
VAI	[Kfz:D] Landkreis Vaihingen
VAN	[Kfz] Vanuatu (nicht offiziell)
VAR	Volatile Access Region
VAT	value-added tax (MwSt)
VAX	virtual address extension
VB	Visual Basic
VB	[Kfz:D] Vogelsbergkreis
VBEG	very big evil grin
VC	Volkov Commander (see MC, NC)
VC	[ccTLD] St. Vincent und die Grenadinen
VCA	variable-gain amplifier
VCC	common collector voltage
VCF	vCard file
VCF	Vintage Computing Festival
VCF	voltage-controlled filter
VCFE	Vintage Computing Festival Europe (VCFe)
VCM	virtual channel memory
VCO	voltage-controlled oscillator
VCR	video cassette recorder
VCS	version control system
VDFDC	[gc] Vielen Dank für den Cache (TFTC)
VDFDD	[gc] Vielen Dank für die Dose (TFTC)
VE	[ccTLD] Venezuela
VEC	[Kfz:D] Landkreis Vechta
VEG	very evil grin
VER	[Kfz:D] Landkreis Verden
VERFGH	Verfassungsgerichtshof
VERPEILUNGSFAKTOR	never forget it
VESA	video electronics standards association
VFO	variable-frequency oscillator
VFS	Viafiers federalas svizras (SBB)
VFS	Virtual File System
VG	Verwaltungsgericht
VG	volume group
VG	[ccTLD] Britische Jungferninseln
VG	[Kfz:D] Landkreis Vorpommern-Greifswald ohne die Stadt Greifswald
VGA	video graphics array
VGH	Verwaltungsgerichtshof
VH	very helpful (lilo lingo, from IRC)
VHDCI	very high density cable interconnect
VHDL	VHSIC Hardware Description Language
VHSIC	Very High Speed Integrated Circuit
VI	it’s e̲d̲itor, *not* v̲i̲itor! don’t use it!
VI	[ccTLD] Amerikanische Jungferninseln
VIB	[Kfz:D] Landkreis Vilsbiburg
VICTOR	V (International Radiotelephony Spelling Alphabet)
VID	voltage level identifier
VIE	[Kfz:D] Kreis Viersen
VIKTOR	V (deutsches Funkalphabet)
VIM	it’s e̲d̲itor, *not* v̲i̲itor! (and vim’s worse.) don’t use it!
VIP	very important person
VIPT	virtually indexed, physically tagged
VIT	[Kfz:D] Landkreis Viechtach
VIVT	virtually indexed, virtually tagged
VK	[Kfz:D] Stadt Völklingen im Regionalverband Saarbrücken
VL	[Kfz:D] Landkreis Villingen
VLAN	virtual local area network
VLIW	very long instruction word
VLSI	very large scale integration
VLSM	variable length subnet mask
VM	virtual machine
VM	virtual memory
VME	virtual mode extension
VML	Vector Markup Language
VMS	Very Much Strange
VMS	Virtual Memory System (aka OpenVMS, operating system by HP)
VMX	vector multimedia extensions
VMX	virtual machine extensions
VN	[ccTLD] Vietnam
VN	[Kfz] Vietnam
VNL	voornamelijk
VO	Virtual Organisation
VOD	video on demand
VOF	[Kfz:D] Landkreis Vilshofen
VOH	[Kfz:D] Landkreis Vohenstrauß
VOMS	Virtual Organisation Membership Service
VOX	Stimme, voice (latin)
VOY	Star Trek: Voyager
VPN	virtual private network
VR	virtual reality
VR	[Kfz:D] Landkreis Vorpommern-Rügen ohne die Stadt Stralsund und ohne den Altkreis Rügen
VRAM	video random access memory
VRM	voltage regulator module
VRRP	Virtual Router Redundancy Protocol
VS	[Kfz:D] Landkreis Villingen-Schwenningen
VT	U+000B ␋ LINE TABULATION
VT	Vertical Tabulator (U+000B)
VT	Virtual Terminal
VTS	U+008A LINE TABULATION SET
VTS	Vertical Tabulation Set (U+008A)
VU	[ccTLD] Vanuatu
VUB	Vrije Universiteit Brussel (*not* where FOSDEM is!)
VVG	Verbesserungsvorschlag
VVV	veni, vidi, vici
VVV	veni, vidi, vodka (Ich kam, sah und soff.)
VVV	Voilà, Vivement Vendredi
W	wahr (boolean 1)
W	Watt
W	[Kfz:D] kreisfreie Stadt Wuppertal
W-CDMA	Wideband Code Division Multiple Access
W/	with
W/O	without
W00T	(exclamation of excitement or happiness)
W3C	World Wide Web Consortium
W8	wait
WA	[Kfz:D] Landkreis Waldeck
WAAS	Wide Area Augmentation System
WAC	[Kfz] Ghana (veraltet)
WAC	[Kfz] Goldküste (veraltet)
WAF	warten anstatt fahren
WAF	[Kfz:D] Kreis Warendorf
WAFWOT	what a foolish waste of time
WAG	wild-ass guess
WAG	[Kfz] Gambia
WAK	[Kfz:D] Wartburgkreis
WAL	[Kfz] Sierra Leone
WAMP	Windows Apache MySQL {Perl,PHP,Python}
WAMPP	Windows Apache MySQL {Perl,PHP,Python}
WAN	we are noobs (newbies)
WAN	wide area network
WAN	Wondering about Networking
WAN	[Kfz:D] kreisfreie Stadt Wanne-Eickel
WAN	[Kfz] Nigeria (veraltet)
WAP	Wireless Access Point
WAP	Wireless Application Protocol
WAR	Java™ Web Archive (collection of class, JSP and XML files), cf. JAR
WAR	[Kfz:D] Landkreis, ab 1969 Kreis Warburg
WARUM	darum (cf. WHY)
WAT	[Kfz:D] kreisfreie Stadt Wattenscheid
WAV	Waveform (RIFF)
WB	welcome back
WB	[Kfz:D] Landkreis Wittenberg
WB	[Kfz] Westjordanland (nicht offiziell)
WBS	[Kfz:D] Landkreis Worbis
WCDMA	see W-CDMA
WCPGW	what could possibly go wrong
WD	[Kfz:D] Kreis Wiedenbrück
WD	[Kfz] Dominica
WDA	[Kfz:D] Landkreis Werdau
WDA	[Kfz:D] Landkreis Zwickauer Land
WDT	watchdog timer
WDYM	what do you mean
WDYMBT	what do you mean by that
WE	[Kfz:D] Landkreis Weimar
WEB	[Kfz:D] Oberwesterwaldkreis
WEG	[Kfz:D] Landkreis Wegscheid
WEL	[Kfz:D] Oberlahnkreis
WELC	working effectively with legacy code
WEM	[Kfz:D] Landkreis Wesermünde
WEN	[Kfz:D] kreisfreie Stadt Weiden in der Oberpfalz
WEP	Wired Equivalent Privacy (yikes! it's as insecure as hell)
WER	[Kfz:D] Landkreis Wertingen
WES	[Kfz:D] Kreis Rees
WES	[Kfz:D] Kreis Wesel
WF	[ccTLD] Wallis und Futuna (auch .fr)
WF	[Kfz:D] Landkreis Wolfenbüttel
WFH	working from home
WFI	wait for interrupt
WFM	works for me
WFM2	works for me, too
WFQ	weighted fair queuing
WFW	Windows® for Workgroups
WFY	works for you
WG	[Kfz:D] Landkreis Wangen
WG	[Kfz] Grenada
WGS84	World Geodetic System of 1984 (refined GRS80 reference ellipsoid) used by GPS
WH	write hit
WHISKEY	W (International Radiotelephony Spelling Alphabet)
WHV	[Kfz:D] kreisfreie Stadt Wilhelmshaven
WHY	because.
WI	[Kfz:D] kreisfreie Stadt Wiesbaden
WIBNI	wouldn't it be nice if
WIFI	wireless fidelity
WIL	[Kfz:D] Landkreis Bernkastel-Wittlich
WILHELM	W (deutsches Funkalphabet)
WINDOWS	Which Idiot Needs Definitly Obsolete (and) Worse Software
WINDOWS	Will ich nicht doch ohne WINDOWS sein?
WINDOWS	will install needless data on whole system
WINDOWS	work is never done on WINDOWS systems.
WINFX	Windows Fix Everyday
WINFX	Windows Freakout Extension
WIP	work in progress
WIR	when it's ready
WIS	[Kfz:D] Landkreis Wismar
WIT	[Kfz:D] kreisfreie Stadt Witten
WIZ	[Kfz:D] Landkreis Witzenhausen
WK	[Kfz:D] Landkreis Wittstock
WL	[Kfz:D] Landkreis Harburg
WL	[Kfz] St. Lucia
WLAN	WaveLAN
WLAN	wireless local area network
WLCG	Worldwide LHC Computing Grid
WLG	[Kfz:D] Landkreis Wolgast
WM	write miss
WM	[Kfz:D] Landkreis Weilheim in Oberbayern
WM	[Kfz:D] Landkreis Weilheim-Schongau
WMA	Windows® Media Player audio file
WMF	Wiedersehen macht Freude
WMF	Windows Metafile
WMF	Württembergische Metallwarenfabrik
WMI	Windows Management Instrumentation
WMNC	watch me not care
WMP	Windows® Media Player
WMS	[Kfz:D] Landkreis Wolmirstedt
WMV	Windows® Media Player video file
WN	[Kfz:D] Landkreis Waiblingen
WN	[Kfz:D] Rems-Murr-Kreis
WND	[Kfz:D] Landkreis St. Wendel
WNPP	work-needing and prospective packages
WO	[Kfz:D] Landkreis Worms
WOB	[Kfz:D] kreisfreie Stadt Wolfsburg
WOFTAM	waste of fucking time and money
WOH	[Kfz:D] Landkreis Wolfhagen
WOL	Wake-on-LAN
WOL	[Kfz:D] Landkreis Wolfach
WOM	Wake-on-Modem
WOMBAT	waste of money, brain, and time
WOR	Wake-on-Ring
WOR	[Kfz:D] Landkreis Wolfratshausen
WORM	write once, read many (CD-R predecessor)
WORN	write once, read never (usually bad code)
WOS	[Kfz:D] Landkreis Wolfstein
WOW	(exclamation of amazement)
WOW	Windows on Windows (ABI wrapper)
WOW	words of wisdom
WOW	World of Warcraft (clinically addictive online game)
WP	Wikipedia
WP	word processor
WP	WordPerfect
WP	Wordpress
WP	write protect
WP	[gc] waypoint
WPA	wi-fi protected access
WPT	[Schule DE] Wahlpflichtunterricht in Teilklassen
WR	[Kfz:D] Landkreis Wernigerode
WRAM	window random access memory
WRN	[Kfz:D] Landkreis Waren
WRT	with respect to
WS	web services
WS	WordStar
WS	[ccTLD] Samoa
WS	[Kfz:D] Landkreis Wasserburg am Inn
WS	[Kfz] Samoa
WSA	[Kfz] Demokratische Arabische Republik Sahara (nicht offiziell)
WSF	[Kfz:D] Landkreis Weißenfels
WSR	[dental] Wurzelspitzenresektion
WST	[Kfz:D] Landkreis Ammerland
WSW	würde schneller wandern
WSW	[Kfz:D] Landkreis Weißwasser
WT	[Kfz:D] Landkreis Waldshut
WTB	waiting to buy
WTB	want to buy
WTB	willing to buy
WTC	write through caching
WTF	oh, it's me! *g*
WTF	was täte Fefe?
WTF	what the fuck
WTF	when the fuck
WTF	where the fuck
WTF	who the fuck
WTF	why the fuck
WTFM	write the fucking manual (GRUB2...)
WTFRUD	what the fuck are you doing
WTG	way to go
WTH	what the hell
WTH	when the hell
WTH	where the hell
WTH	who the hell
WTH	why the hell
WTL	[Kfz:D] Landkreis Wittlage
WTM	[Kfz:D] Landkreis Wittmund
WTS	waiting to sell
WTS	want to sell
WTS	willing to sell
WTT	waiting to trade
WTT	want to trade
WTT	willing to trade
WTX	Workstation Technology Extended
WUG	[Kfz:D] Landkreis Weißenburg-Gunzenhausen in Bayern
WUN	[Kfz:D] Landkreis Wunsiedel im Fichtelgebirge
WUR	[Kfz:D] Landkreis Wurzen
WV	[Kfz] St. Vincent und die Grenadinen
WW	[Kfz:D] Westerwaldkreis
WWAN	wireless wide area network
WWE	World Wrestling Entertainment, Inc.
WWI	First World War
WWI	was weiß ich
WWII	Second World War
WWJD	what would Jesus do?
WWW	weltweit warten
WWW	world wide waiting
WWW	world wide web
WYSIWYG	what you see is what you get
WZ	[Kfz:D] Stadt Wetzlar im Lahn-Dill-Kreis
WZL	[Kfz:D] Landkreis Wanzleben
W^X	either writable or executable, but not both (W xor X)
WÜ	[Kfz:D] kreisfreie Stadt und Landkreis Würzburg
WÜM	[Kfz:D] Landkreis Waldmünchen
X	[Kfz:D] Dienstfahrzeuge der internationalen Hauptquartiere (NATO)
X-RAY	X (International Radiotelephony Spelling Alphabet)
XACML	Extensible Access Control Markup Language
XANTHIPPE	X (deutsches Funkalphabet)
XBAR	crossbar
XBM	X Bitmap
XD	(spanish emoticon: smile)
XEP	XMPP Extension Protocol
XER	XML encoding rules
XGA	extended graphics adapter/array
XHTML	Extensible Hyper-Text Markup Language
XIP	execute in place
XML	Extensible Markup Language
XMPP	Extensible Messaging and Presence Protocol (aka. Jabber)
XNSL	[gc] exchanged nothing, signed log (cf. TNLNSL, N/T)
XOR	exclusive or
XP	extreme programming
XPM	X Pixmap
XRAY	X (International Radiotelephony Spelling Alphabet)
XSL	extensible stylesheet language
XSS	Cross-Site Scripting (sometimes CSS)
XT	extended technology
XU	(When a package is split into a whole bunch of small packages, that's a (Herbert) Xu)
XUL	XML user interface language
XXX	[sTLD] for sexual purposes
XXX	[sTLD] sex (erotische Inhalte)
Y	and
Y	why?
Y	[Kfz:D] Dienstfahrzeuge der Bundeswehr
Y	[Kfz] Jugoslawien (veraltet)
YACC	yet another compiler compiler
YAFHCI386	yet another fine hardcoded i386
YAGNI	you ain't gonna need it
YAHOO	Yet Another Hierarchically Officious Oracle
YAIM	Yet Another Installation Method
YALIMO	you are lame, in my opinion
YANKEE	Y (International Radiotelephony Spelling Alphabet)
YAOTM	yet another off-topic message
YAR	[Kfz] Nordjemen (veraltet)
YAST	Yet another Setup Tool
YAWPFAPR	you are welcome; please file a problem report
YDAY	yesterday
YDIW	You’re doing it wrong.
YE	[ccTLD] Jemen
YEM	[Kfz] Jemen
YGM	you got mail
YGMP	you get my point
YGWYPF	you get what you pay for
YGWYPF	you get what you prayed for
YHBT	you have been trolled
YHL	you have lost
YKWIM	you know what I mean
YM	yo momma
YMA	yo momma's arse
YMMD	you made my day!
YMMV	your mileage may vary
YMN	[Kfz] Nordjemen (veraltet)
YNS	Yeah, No Shit!
YOLO	you only live once
YP	Yellow Pages (aka NIS)
YPSILON	Y (deutsches Funkalphabet)
YR	your, yours
YT	youtube
YT	[ccTLD] Mayotte (Frankreich) (auch .fr)
YTD	year to date
YU	[ccTLD] ehemaliges Jugoslawien (lief bis 30. März 2010, heute .rs für Serbien und .me für Montenegro)
YU	[Kfz] Jugoslawien (veraltet)
YUM	Yellowdog Updater Modified
YV	[Kfz] Venezuela
YW	you're welcome
YWSYLS	you win some, you lose some
Z	[Kfz:D] Landkreis Zwickau
Z	[Kfz] Sambia
Z.B.	zum Beispiel
ZA	[ccTLD] Südafrika
ZA	[Kfz] Südafrika
ZACHARIAS	Z (deutsches Funkalphabet)
ZB	zum Beispiel
ZBR	zone bit recording
ZBUS	Zwischen Bildschirm und Stuhl
ZE	[Kfz:D] Landkreis Zerbst
ZEL	[Kfz:D] Landkreis Zell
ZFOD	zero-filled on demand
ZI	[Kfz:D] Landkreis Löbau-Zittau
ZI	[Kfz:D] Sächsischer Oberlausitzkreis
ZIF	zero insertion force
ZIFS	zero insertion force socket
ZIG	[Kfz:D] Landkreis Ziegenhain
ZIM	Zentrum für Informations- und Medienverwaltung (cf. HRZ)
ZM	[ccTLD] Sambia
ZMA	zone multicast address
ZP	[Kfz:D] Landkreis Zschopau
ZR	[Kfz:D] Landkreis Zeulenroda
ZR	[Kfz] Zaire (veraltet)
ZRE	[Kfz] Zaire (veraltet)
ZS	[Kfz:D] Landkreis Zossen
ZSH	Z Shell
ZULU	Z (International Radiotelephony Spelling Alphabet)
ZW	[ccTLD] Simbabwe
ZW	[Kfz:D] Landkreis Zweibrücken
ZW	[Kfz] Simbabwe
ZWJ	U+200D ZERO WIDTH JOINER
ZWNBSP	U+FEFF ZERO WIDTH NO-BREAK SPACE (BOM)
ZWNJ	U+200C ZERO WIDTH NON-JOINER
ZWSP	U+200B ZERO WIDTH SPACE
ZZ	[Kfz:D] Landkreis Zeitz
^^	(emoticon: bemusement)
^_^	(emoticon: bemusement)
ÄRGER	Ä (deutsches Funkalphabet)
ÖBB	Österreichische Bundesbahnen
ÖHR	[Kfz:D] Landkreis Öhringen
ÖKONOM	Ö (deutsches Funkalphabet)
ÖPNV	Öffentlicher Personennahverkehr (public transport)
ÜB	[Kfz:D] Landkreis Überlingen
ÜBERMUT	Ü (deutsches Funkalphabet)
СРБ	[ccTLD] Serbien
бг	[ccTLD] Bulgarien
рф	[ccTLD] Российская Федерация, Rossijskaja Federazija‚ Russische Föderation
срб	[ccTLD] Serbien
укр	[ccTLD] Ukraine
ҚАЗ	[ccTLD] Kasachstan
қаз	[ccTLD] Kasachstan
الاردن	[ccTLD] al-urdunn, Jordanien
الجزائر	[ccTLD] Algerien
السعودية	[ccTLD] as-saʿūdīya, Saudi-Arabien
المغرب	[ccTLD] Marokko
امارات	[ccTLD] imārāt, Vereinigte Arabische Emirate
ایران	[ccTLD] īrān, Iran
بھارت	[ccTLD] Indien (Urdu)
تونس	[ccTLD] tūnis, Tunesien
سوريا	[ccTLD] sūriyā, Syrien
سورية	[ccTLD] Syrien
عمان	[ccTLD] Oman
فلسطين	[ccTLD] filasṭīn, Palästina
قطر	[ccTLD] Katar
مصر	[ccTLD] maṣr, Ägypten
भारत	[ccTLD] Indien (Hindi)
ভারত	[ccTLD] Indien (Bengali)
ਭਾਰਤ	[ccTLD] Indien (Punjabi)
ભારત	[ccTLD] Indien (Gujarati)
இந்தியா	[ccTLD] Indien
இந்்தியா	[ccTLD] Indien (Tamil)
இலங்கை	[ccTLD] Sri Lanka
இலங்்கை	[ccTLD] Sri Lanka (Tamil)
சிங்கப்பூர்	[ccTLD] Singapur
சிங்்கப்்பூர்்	[ccTLD] Singapur (Tamil)
భారత్	[ccTLD] Indien
భాారత్్	[ccTLD] Indien (Telugu)
ලංකා	[ccTLD] Sri Lanka (Sinhala)
ไทย	[ccTLD] Thailand
中国	[ccTLD] Zhōngguó, China (VR)
中國	[ccTLD] Zhōngguó, China (VR)
台湾	[ccTLD] Republik China / Taiwan
台灣	[ccTLD] Republik China / Taiwan
新加坡	[ccTLD] Singapur
香港	[ccTLD] Hongkong
한국	[ccTLD] Südkorea
ﻢﻠﻴﺴﻳﺍ	[ccTLD] Malaysia