| Automixis | automixis |
| Apomixis | apomixis |
| Automatik | automatism automatic automatic transmission |
| Automobil | automobile car auto motorcar |
| automobil | automotive |
| Autotoxin | autotoxin |
| Asterixis | asterixis flapping tremor |
| automagisch | automagical |
| Autoabgas | car exhaust |
| Autoatlas | road atlas |
| Autobus | bus coach motorbus |
| Autocross | autocross |
| Autodieb | car thief |
| Autodiebin | car thief |
| Autoerotik | autoerotism |
| Autofokus | autofocus |
| Autogamie | autogamy |
| Autogiro | autogyro autogiro |
| Autohaus | car dealer car dealership |
| Autokinese | autokinesis |