| Autoklav | autoclave |
| Autokrat | autocrat |
| Autoatlas | road atlas |
| Autocar | bus |
| Autograf | autograph |
| Autokauf | car purchase |
| Autokino | drive-in drive-in cinema drive-in theater |
| Automat | vending machine |
| Autosave | autosave |
| autogam | autogamous |
| Autoblock | autoblock |
| Autograph | autograph |
| auto- | self- auto- |
| Auto | car motor car auto order resolution writ |
| Autoabgas | car exhaust |
| Autobahn | motorway freeway highway interstate highway |
| Autobus | bus coach motorbus |
| Autocue | autocue |
| Autodafé | auto-da-fé |
| Autodieb | car thief |