| Abduktor | abductor |
| Adduktor | adductor |
| Abduktion | abduction abductive reasoning |
| Induktor | inductor |
| Obduktion | autopsy postmortem post mortem postmortem examination |
| Aktor | actuator |
| Doktor | doctor physican |
| Autor | author literator |
| Äquator | equator |
| Abdul | Abdul |
| Abdulla | Abdullah |
| abdikativ | abdicative |
| Abdecker | knacker renderer |
| Abdikation | abdication |
| Abdon | Abdon |
| abdunkeln | darken dim reduce black out obscure |
| abdüsen | roar off zoom off |
| Deduktion | deduction |
| Duktus | flow |
| Düker | culvert |