| Autogamie | autogamy |
| Autografie | autography |
| Autonomie | autonomy |
| Autotomie | autotomy |
| autogam | autogamous |
| Autobombe | car bomb |
| Autofähre | car ferry |
| Autogramm | autograph |
| Autographie | autography |
| Autokarpie | autocarpy |
| Autokratie | autocracy |
| Automarke | car brand make of car |
| Automatik | automatism automatic automatic transmission |
| Autophagie | autophagocytosis |
| Autopsie | autopsy |
| Autoradio | car radio automobile radio |
| Autosave | autosave |
| Autotypie | autotypy |
| Hypogamie | hypogamy |
| Endogamie | endogamy |