List of acronyms: 0–9

List of acronyms ("words made from parts of other words, pronounceable") and initialisms ("list of initial characters from a name or phrase, usually not pronounced"). These definitions are not rigid, but AIDS and Interpol are acronyms and FBI and ACLU are initialisms.

Please add your own, in alphabetical order:

AA - Alcoholics Anoynmous / Automobile Association
AAA - American Automobile Association
ACL - Access Control List
ACLU - American Civil Liberties Union
AD - Latin "Anno Domini" (In the year of our Lord)
ADT - Atlantic Daylight Time (UTC-3 hours)
AFAIK - As far as I know
AFAIR - As far as I remember
AFJ - April Fool's Joke
AFK - Away from keyboard
AGM
AI - Amnesty International; Artificial Intelligence
AIDS - Acquired Immune Deficiency Syndrome
AIM - AOL Instant Messenger
aka - also known as
AKDT - Alaska Standard Daylight Saving Time (UTC-8 hours)
AKST - Alaska Standard Time (UTC-9 hours)
ANSI - American National Standards Institute
AOL - America Online
AP - Associated Press
apm - Advanced Power Management
ASAP - as soon as possible
ASCAP - American Society of Composers, Authors, and Publishers
ASL - American Sign Language
ASP - Application service provider
ASP - Active Server Pages
AST - Atlantic Standard Time (UTC-4 hours)
AT&T - American Telephone and Telegraph Company
AUC - Ab Urbe Condita
AVO - Apprehended Violence Order
AWACS - Airborne Warning and Control System
AWOL - Absent Without Leave (military jargon)

B2B - Business to Business
B2C - Business to Customer
BB - Brigitte Bardot (actress) / Boys' Brigade (Christian youth organisation)
BBC - British Broadcasting Corporation
BBQ - Barbeque
BCC - Blind Carbon Copy
BFE - Beyond/Butt F****** Egypt (colloquial for "quite far away")
BMI - Broadcast Music Incorporated
BMX - Bicycle Motor Cross
BO2K - Back Orifice 2000
BOFH - Bastard operator from hell
bpm - Beats per minute
BSE - Bovine Spongiform Encephalopathy, better known as Mad Cow disease
BSL - British Sign Language
BST - British Summer Time (UTC+1 hour)
BT - British Telecommunications plc
BP - British Petroleum
BTO - Built to Order
BTW - By the way
BYOB - Bring your own beverages/bottle

CB - citizens' band radio
CD - Compact Disc
CDC - Centre for Disease Control and prevention
CE - Common (or Christian) Era (cf. AD)
CEPT - Conference Européenne des administration des Postes et des Télécommunications (European Conference of Postal and Telecommunications Administrations)
cf. - Latin confer (compare, or see also)
CFG - Context-free grammar, Control flow graph
CIA - Central Intelligence Association
CID - Criminal Investigations Department
CLEC - Competitive (?) Local Exchange Carrier
CO - Central Office (Phone Company office or POP)
CMM - Capability Maturity Model
CND - Campaign for Nuclear Disarmament
CNN - Cable News Network
CPA - Certified Practicing Accountant
CRM - Customer Relations Management

DC - Italian Democrazia Cristiana
DND - Do Not Disturb
DOS - Density of State
DVD - Digital Versatile Disk (was Digital Video Disk)

EEC - European Economical Community
ELF - Extremely low frequency
ESA - European Space Agency
ETA - estimated time of arrival
etc - latin "et cetera" (and remaining)
ETLA - Extended TLA
EU - European Union

FAO - Food and Agriculture Organization
FIDE - The Fédération Internationale des Échecs (World Chess Foundation)
FIFO - First In First Out
FUBAR - F****d Up Beyond All Repair/Recognition
FWIW - For What It's Worth

GIGO - Garbage In Garbage Out
GMO - Genetically modified organism
GT - Gran Turismo

HMS - Her (or His) Majesty's Ship (see Royal Navy)

IAEA - International Atomic Energy Agency
IAI - International African Institute
IANAL - I am not a lawyer
ICAO - International Civil Aviation Organisation
ICC - International Criminal Court
IIRC - If I recall correctly
ILC - International Law Comission
ILO - International Labour Organisation
IMHO - In My Humble Opinion
IMO - International Maritime Organisation
IMO - In My Opinion
Interpol -- International Criminal Police Organization
IPN - Polish Institute for National Memory (Instytut pamieci narodowej)
IRA - Irish Republican Army
IRO - International Refugee Organisation
IRS - Internal Revenue Service
ISA - International Seabed Authority
ITU - International Telecommunication Union

(yet to be established)

JATO - Jet Assisted Takeoff Unit

KARNAC - Knowledge Aided Retrieval in Activity Context
KISS - Keep it simple stupid
KKK - Ku Klux Klan

LASER - Light Amplification by Stimulated Emission of Radiation
LATA - Local Access Transport Area
LEC - Local Exchange Carrier
LGB - Lesbian, Gay, Bi-sexual
LIFO - Last In First Out
LMS - London Mathematical Society
LOL - Laughing Out Loud

MASER - Microwave Amplification by Stimulated Emission of Radiation
MHz - Megahertz
MMU - Manned Maneuvering Unit
MOPE - Most Oppressed People Ever (politics)
MSIE - Microsoft Internet Explorer
MTV - Music TeleVision

NASA - National Aeronautics and Space Administration
NASCAR - National Association for Stock Car Auto Racing
NATO - North-Atlantic Treaty Organization
NIMBY - Not In My Back Yard
NGO - Non-Governmental Organization
NLP - Natural Language Processing or Neuro Linguistic Programming
NPOV - Neutral point of view
NUTS - Nuclear Utilization Target Selection

PABX - Private Automated Branch Exchange (company phone system)
PBX - Private Branch Exchange (company phone system)
PDA - Public display of affection; personal digital assistant
plc - (British) public limited company
POP - Point of Presence
POTS - Plain Old Telephone Service

Quango - (British) quasi non-governmental organisation
Quasar - quasi-stellar radio source
qv - Latin "quod vide" (which see)

radar - radio detection and ranging
RBOC - Regional Bell Operating Company ("Baby Bell")
RIP - Rest in Peace (requiescant in pace)
RP - role-playing
RPG - role-playing game
RPN - Reverse Polish Notation

SAS - Special Air Service - Scandanavian Airline Systems
SCUBA - Self Contained Underwater Breathing Apparatus
SMDR - Station Message Detail Recording
SNAFU - Situation Normal All F****d Up
SOL - S**t Out of Luck
SOV - Single occupant vehicle
SPQR - Senatus PopulusQue Romanus
SSRI - Social Systems Research Institute
STOVL - Short Take Off and Vertical Landing
SVO - subject, verb, object

TLA - Three-Letter Acronym

UCK - acronym for two Albanian guerilla movements
UFO - Unidentified Flying Object
UN - United Nations
UNESCO - United Nations Educational, Scientific and Cultural Organization
UNHCR - United Nations High Commission for Refugees
UNICEF - United Nations Children's Fund, originally United Nations International Children's Emergency Fund
UNIDO - United Nations Industrial Development Organization
UNIFEM - United Nations Fund for Women
UPU - Universal Postal Union
USC - United States Code

VSO - Voluntary service overseas
VTOL - Vertical Takeoff & Landing

WC - Winston Churchill - water closet
WCL - World Confederation of Labour
WFP - World Food Program
WHO - World Health Organization
WIPO - World Intellectual Property Organization
WMO - World Meteorological Organization
WTC - World Trade Center
WTO - World Trade Organization

YMMV - Your Mileage May Vary

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