| Antienzym | antienzyme |
| Antonym | antonym |
| Antagonym | contranym |
| Antenne | aerial antenna feeler feeling |
| Antigen | antigen |
| Aktien | equity |
| Andienung | tender |
| Audienzen | audience |
| andienen | pander |
| Audienz | audience |
| Angrenzen | abutment |
| angrenzen | abut on border on |
| Enzym | enzyme |
| Antazidum | antacid |
| Antifa | Antifa |
| Antigone | Antigone |
| Antimer | antimere |
| Antinomie | antinomy |
| Antiochia | Antioch |
| Antiochos | Antiochus |