Acronym
8723 abbreviations
| Abbreviation | Meaning | |
|---|---|---|
| a | Atto- | |
| A | Ampere | |
| A/C | Air Conditioned/Conditioning | |
| A/C | Aircraft | |
| A/Cdre | Air Commodore | |
| A/D | Analog/Digital | |
| A&E | Arts & Entertainment Network, the original name for the U.S. TV channel now known as A&E Network | |
| A/S | Anti-submarine | |
| A&S | Armament & Standardisation | |
| A10 | Atlantic 10 Conference | |
| A1C | Airman First Class | |
| A2ATD or A2ATD | Anti-Armour Advanced Technology Demonstration | |
| A2C2 or A2C2 | Army Airspace Command and Control | |
| A4 | many, including a European standard office paper size; see entry | |
| aa | Afar language (ISO 639-1 code) | |
| aA | Attoampere | |
| AA | achieved availability | |
| AA | Armed Forces Americas (postal symbol) | |
| AA | Aruba (FIPS 10-4 territory code) | |
| AA | assembly area | |
| AA | Automobile Association | |
| AA | avenue of approach | |
| AAA | administration, authorization, and authentication | |
| AAA | American Automobile Association ("Triple-A") | |
| AAA | anti-aircraft artillery | |
| AAA | Amateur Athletic Association (of England) | |
| AAA | Asistencia Asesoría y Administración (Spanish, "Assistance, Consulting, and Administration"—Mexican professional wrestling promotion) | |
| AAAI | American Association for Artificial Intelligence | |
| AAAS | American Association for the Advancement of Science | |
| AAC | American Athletic Conference | |
| AAC | Army Air Corps (British Army) | |
| AAD | analogue-analogue-digital (CD quality) | |
| AAD | Australian Antarctic Division | |
| AADAC | Alberta Alcohol and Drug Abuse Commission | |
| AADC | area air defense commander | |
| AADC | amino acid decarboxylase | |
| AADC | aromatic L-amino acid decarboxylase | |
| AADC | Australian Antarctic Data Centre | |
| AADD | Adult attention deficit disorder | |
| AADT | annual average daily traffic | |
| AAFC | U.S. Army Air Corps Ferrying Command (1941–1942) | |
| AAFC | All-America Football Conference (1946–1949) | |
| AAFES | Army and Air Force Exchange Service | |
| AAI | applied artificial intelligence | |
| AAIS | advanced airborne interceptor simulator | |
| AAM | air-to-air missile | |
| AAMOF | as a matter of fact | |
| AANEAS | Anglo-Australian Near-Earth Asteroid Survey | |
| AAODL | Atmospheric Aerosols and Optics Data Library | |
| a.a.p. | Associated Artists Productions (former film distributor) |