| A CONTRARIO | v protiklade |
|---|---|
| AAAL | american academy of arts and letters |
| AAC | Academic Advisory Center |
| AAD | American Academy of Denturity |
| AAD | American Academy of Dermatology |
| AAKJAER | dánsky spisovateľ - prozaik a básnik, autor sociálne ladených románov (Jeppe, 1866-1930) |
| AAM | Academy of Ancient Music |
| AAN | American Academy of Neurology (skr.) |
| AAN | American Academy of Nursing |
| AAP | Academy of American Poets |