| Ökonom | economist |
| Ökonomie | economy |
| Ökonomin | economist |
| Ökonym | econym |
| ökonomisch | economic economical |
| Ökonomismus | economism |
| Ökoton | ecotone |
| Okonomiyaki | okonomiyaki |
| Ökonometrie | econometrics |
| Kondom | condom rubber |
| Mononom | monomial |
| Monom | monomial |
| Pronom | pronoun |
| Kinom | kinome |
| Öko- | organic |
| öko- | eco- |
| Ökotyp | ecotype |
| Ökozid | ecocide |
| Kokon | cocoon |
| Kokos | coconut coco |