| Abbreviation | Definition |
|---|---|
| ACWS | Aircraft Control and Warning Squadron |
| ACWS | Army Contract Writing System |
| ACWT | Average Customer Waiting Time |
| AD | Active Duty |
| AD | ADd-On |
| AD | Admission and Disposition (report) |
| AD | Advanced Deployability |
| AD | Advanced Development |
| AD | After a Date |
| AD | Air Defense |
| AD | Air Division |
| AD | Antiaircraft Defence |
| AD | Armored Division |
| AD | Army Department |
| AD | Artillery Depot |
| AD | Associate Director |
| AD | ASTIA (Armed Services Technical Information Agency) Document |
| AD | Attack Damage |
| AD | Automatic Distribution |
| AD | FAADC2I Dual Workstation-class computer unit |