| AACO | Arts and Culture Observatory (skr.) |
|---|---|
| AACO | Australian Agricultural Company (skr.) |
| AAS | nórsky rýchlokorčuliar (OH 1960) |
| ABC | Audit Bureau of Circulations |
| ABC | skr. pre prvú pomoc, Airway-Breathing-Circulation |
| ADT | Articulated Dump Truck |
| AE | Agricultural Engineer |
| AES | Agricultural Experiment Station |
| AFEKT | rozčúlenie |
| AGILITA | čulosť, horlivá činnosť, pohyblivosť |