| Autocross | autocross |
| Motocross | motocross |
| Autochrom | autochrome |
| Autodrom | motor-racing circuit dodgems track bumper car dodgem |
| autotroph | autotroph |
| Autoblock | autoblock |
| Autograph | autograph |
| Autoabgas | car exhaust |
| Autoatlas | road atlas |
| Autobus | bus coach motorbus |
| Autocar | bus |
| Autocue | autocue |
| Autoerotik | autoerotism |
| Autofokus | autofocus |
| Autogiro | autogyro autogiro |
| Autograf | autograph |
| Autogramm | autograph |
| Autohaus | car dealer car dealership |
| Autokorso | car parade motorcade parade of cars procession of cars |
| Autokrat | autocrat |