| Abbreviation | Definition |
|---|---|
| AJT | Advanced Job Training |
| AK | Administra Komitato |
| AK | Aim Kill |
| AK | Already Killed |
| AK | Always Killed |
| AK | Arabian Knights |
| AK | Automat Kalashnikov |
| AK | Aviation Storekeeper |
| AK | Avtomat Kalashnikov |
| AK | Cargo Ship (Auxiliary, Kargo) |
| AK1 | Aviation Storekeeper First Class |
| AK2 | Aviation Storekeeper Second Class |
| AK3 | Aviation Storekeeper Third Class |
| AK47 | Avtomat Kalashnikova 1947 |
| AK-47 | Avtomat Kalashnikova 1947 (Soviet-Made 7.62mm Assault Rifle) |
| AKC | Army Kinema Corporation |
| AKC | Chief Aviation Storekeeper |
| AKCM | Master Chief Aviation Storekeeper |
| AKCS | Senior Chief Aviation Storekeeper |
| AKMS | Army Key Management System |