| À JOUR | načas, nemeškať (byť v ažurite), v určený deň dokončené |
|---|---|
| AA | kancelárska skr., čínska droga |
| AAB | Agence Africaine de Biotechnologie |
| AAB | Alliance Agricole Belge |
| AAC | Alliance Agricole Belge |
| AAI | Alliance of American Insurers |
| AAN | Air Ambulance Network |
| AAR | Alliance for Aging Research |
| AAS | Academy of Applied Science |
| AAS | Advances in the Astronautical Sciences |