| Koloquinte | colocynth |
| Pomaquinte | colocynth |
| Kolbenente | red-crested pochard |
| Kolonist | colonist |
| Koloquintenkürbis | colocynth |
| Kolubrine | culverin |
| Kolloquium | colloquium examination symposium test |
| Kolonie | colony |
| Kolonne | convoy fractionating column |
| Kolumne | column |
| eloquent | eloquent |
| Isoquante | isoquant |
| Quinte | fifth |
| Koloman | Colman |
| Kolonel | minion |
| Kolonistin | colonist |
| Kolophon | colophon |
| Kolumbide | pigeon |
| kolonial | colonial |
| Ökologin | ecologist |