| A CAPPELLA | skladba zborového spevu bez inštrumentálneho doprovodu | 
|---|---|
| A CONTO | na účet, ako záloha, tiež á conto | 
| AA | Anti-Aliasing | 
| AAB | Antifašistická Akcia Bratislava (skr.) | 
| AAB | Application Architecture Blueprint | 
| AAC | Academic Advisory Center | 
| AAC | Airborne Aircraft Controller | 
| AACO | Arizona Association of Counties (skr.) | 
| AACO | Assault Airlift Control Officer | 
| AAD | American Academy of Denturity |