| A TO | čiže, teda, totiž |
|---|---|
| AAB | Australasian Associated Brewers |
| AAP | Australian Associated Press (skr.) |
| AAS | Against Assisted Suicide |
| ABA | Accredited Business Accountant |
| ABE | Automated Buyer Environment |
| ABS | Automated Billing System |
| AC | Anticipated Convection, kód pre predpovede silnej búrky |
| ADC | Automated Data Collection |
| ADL | Advanced Distributed Learning |