| Abbreviation | Definition |
|---|---|
| AAAD | All Arms Air Defense |
| AAAD | An Army At Dawn |
| AAAF | Army Auxiliary Air Force |
| AAAF | Association of African Air Forces |
| AAAM | Advanced Air-to-Air Missile |
| AAAMS | Advanced Antiarmor Missile System |
| AAAOB | Anti Aircraft Artillery Order Of Battle |
| AAAS | Advanced Aircraft Armament System |
| AAAS | Amphibious Aviation Assault Ship |
| AAAT | Army Advanced Aviation Technology |
| AAAV | Advanced Airborne Command Post |
| AAAV | Advanced Amphibious Assault Vehicle |
| AAAW | Advanced Airborne Antiarmor Weapon |
| AAAW | Anti Aircraft Automatic Weapon |
| AAB | American Assault Brigade |
| AAB | Anti Aircraft Battery |
| AAB | Army Air Base |
| AAB | Aviation Armament Bulletin |
| AABC | Army Acquisition Basic Course |
| AABC | Australian Army Band Corps |