| Autodetermination | self-determination |
| Determination | determination |
| Autointoxikation | autointoxication |
| Autorisation | authorisation authorization |
| Determinativ | determiner |
| Authentifikation | authentication authentification |
| Autodigestion | autodigestion |
| Autokollimation | autocollimation |
| Automation | automation |
| Autosemantikon | autosemantic autosemantic word content word |
| Autoxidation | autoxidation |
| Audiodeskription | audio description |
| Dekontamination | decontamination |
| Kontamination | amalgam blending |
| Indoktrination | indoctrination |
| Autofiktion | autofiction |
| Autofellatio | autofellatio |
| Autoinfektion | autoinfection |
| Autonomistin | autonomist |
| Autovermietung | car hire car hire service |