| koronar | coronary |
| Koronal | coronal |
| koronal | coronal |
| Korona | aureole |
| Korollar | corollary |
| Korsar | privateer |
| Coroner | coroner |
| Korolla | corolla |
| Korund | corundum |
| körnig | grained |
| Koran | Qur'an Koran |
| Kordon | cordon |
| Korduan | cordovan |
| Korea | Korea |
| Koreaner | Korean |
| Korinth | Corinth |
| Kormoran | cormorant Great Cormorant |
| Korn | grain schnapps |
| Korolle | corolla |
| Korporal | corporal |