| Autogiro | autogyro autogiro |
| Autokino | drive-in drive-in cinema drive-in theater |
| Autocar | bus |
| Autochrom | autochrome |
| Autodieb | car thief |
| Autodrom | motor-racing circuit dodgems track bumper car dodgem |
| Autograf | autograph |
| Autokorso | car parade motorcade parade of cars procession of cars |
| Autonarr | piston head pistonhead |
| Autopilot | autopilot automatic pilot |
| Autor | author literator |
| Autorin | author writer |
| Autositz | car seat |
| autogam | autogamous |
| autogen | autogenous |
| Autograph | autograph |
| auto- | self- auto- |
| Autist | autist autistic person |
| Auto | car motor car auto order resolution writ |
| Autobahn | motorway freeway highway interstate highway |