| Abbreviation | Definition |
|---|---|
| AACS | Army Airway Communications Service |
| AACS | Army Airways Communications System |
| AACSC | Army Automation and Communications Steering Committee |
| AACT | Air-to-Air Combat Test |
| AACTS | Alpena Air Combat Training System |
| AACTS | Automated All-weather Cargo Transfer System |
| AACUS | Autonomous Aerial Cargo/Utility System [USN] |
| AACV | Armored Aircraft Carrying Vehicle |
| AAD | Army Air Defense |
| AAD | Assessment of Active Devices |
| AADA | Army Air Defense Artillery |
| AADC | All Application Digital Computer |
| AADC | Area Air Defense Commander |
| AADC | Army Air Defence College |
| AADC2 | Army Air Defense Command and Control |
| AADCCS | Army Air Defense Command and Control System |
| AADCOM | Army Air Defense Command |
| AADCP | Army Air Defense Command Post |
| AADCP | Army Air Defense Command Posts |
| AADEOS | Advanced Air Defense Electro- Optical Sensor |