| Antifonale | antiphonal |
| Antigone | Antigone |
| Antiklinale | anticline |
| Antifon | antiphon |
| Rationale | rationale |
| Antifa | Antifa |
| Antimongelb | Naples yellow |
| Antinomie | antinomy |
| Antiphrase | antiphrasis |
| Antilope | antelope |
| Antimon | antimony |
| Antimonit | antimonite stibnite |
| Antipode | antipode |
| antiviral | antiviral |
| atonal | atonal |
| Aktionär | shareholder stockholder |
| arational | arational |
| national | national |
| optional | optional |
| rational | rational |