| Kookaburra | kookaburra |
| Kookkurrenz | co-occurrence |
| Kokarde | cockade |
| Okara | okara |
| Kokablatt | coca |
| Vokabular | vocabulary |
| Kamorra | Camorra |
| kooptieren | co-opt coopt |
| Bookmaker | bookmaker |
| bookmark | bookmark |
| Bookmark | bookmark |
| Itokawa | Itokawa |
| Kilokalorie | kilocalorie |
| Krokant | brittle |
| Trokar | trocar |
| Vokabeln | vocabulary |
| Apokarp | apocarp |
| apokarp | apocarpous |
| Exokarp | epicarp |
| Kinokarte | cinema |