| AAB | Asociación Andaluza de Bibliotecarios |
|---|---|
| ACA | Aircraft Carrier Alliance |
| ACI | Automatic Card Identification |
| ATC | Artist Trading Cards |
| CAR | cár, po česky |
| CAR | skr. súhvezdia Kýl (Carina) |
| CIE | Carta d'Identit |
| COX | britský (anglický) DJ (Carl, *1962) |
| CPR | Cardial-Pulmonal Resuscitation (skr.) |
| CPS | Carte de Professionnel de Santé |