| Acronym | Definitions |
|---|---|
| astrol | 3 |
| ASTS | 3 |
| ASTSWMO | 2 |
| ASU | 6 |
| ASUW | 4 |
| ASV | 7 |
| ASVAB | 2 |
| ASVO | 1 |
| ASW | 13 |
| ASW/NDB | 1 |
| ASW/SOW | 1 |
| ASW/VLA | 1 |
| ASWA | 1 |
| ASWC | 3 |
| ASX | 3 |
| Async | 1 |
| AT | 37 |
| AT&T | 3 |
| AT. | 2 |
| ATA | 25 |
| ATAC | 2 |
| ATACC | 1 |
| ATACMS | 1 |
| ATAD | 3 |
| ATADS | 1 |
| ATAP | 1 |
| ATAPI | 2 |
| ATB | 6 |
| ATBD | 1 |
| ATBM | 2 |
(1981 — 2010 of 2259)