| AAD | Applied Acoustic Design (skr.) |
|---|---|
| ABATE | taliansky futbalista (Ignazio, *1986) |
| ABDIKOVAL | rezignoval, odstúpil |
| ABS | Automatic block signal (skr.) |
| ACP | Army Campaign Plan |
| ACS | Air Campaign Simulator |
| ADD | Advanced Digital Design |
| ADD | Architectural Design Document |
| ADE | Analog Design Environment |
| ADT | Art Design Technology |