| Autobus | bus coach motorbus |
| Autocue | autocue |
| Autohaus | car dealer car dealership |
| Autobusobdach | bus shelter |
| auto- | self- auto- |
| Autismus | autism |
| Auto | car motor car auto order resolution writ |
| Autoabgas | car exhaust |
| Autobahn | motorway freeway highway interstate highway |
| Autobusfahrer | bus driver |
| Autocar | bus |
| Autofokus | autofocus |
| Autokauf | car purchase |
| Autolyse | autolysis |
| Automat | vending machine |
| Autor | author literator |
| Autorin | author writer |
| Autosom | autosome |
| Nautilus | nautilus |
| autogam | autogamous |