| Edukt | reactant |
| Dukat | ducat |
| Medusa | Medusa |
| Eduard | Edward |
| Geduld | patience |
| deduktiv | deductive |
| duduk | duduk |
| Duktus | flow |
| Düker | culvert |
| Ovidukt | Fallopian tube oviduct |
| Produkt | product |
| Viadukt | viaduct |
| duktil | ductile |
| kaduk | breakable |
| Reduzent | decomposer |
| Beduine | Bedouin Beduin |
| Deduktion | deduction |
| Medulla | medulla Medulla |
| Reduktion | reduction |
| Seduktion | seduction |