| Automarkt | car mart |
| Automarke | car brand make of car |
| Automat | vending machine |
| Autocar | bus |
| Autofahrt | car ride |
| Autokrat | autocrat |
| Automatik | automatism automatic automatic transmission |
| Autonarr | piston head pistonhead |
| autark | autarkic self-sufficient self-sustaining |
| automorph | automorphic idiomorphic |
| atomar | atomic |
| Baumarkt | DIY shop hardware store (US) ironmonger's |
| lautstark | vocal loud |
| Autarkie | autarky self-sufficiency |
| Autobahn | motorway freeway highway interstate highway |
| Autochrom | autochrome |
| Autodafé | auto-da-fé |
| Autodidakt | autodidact |
| Autodrom | motor-racing circuit dodgems track bumper car dodgem |
| Autofahrer | motorist driver car driver |