| Karbunkel | carbuncle |
| Karfunkel | carbuncle |
| Karnickel | bunny |
| Karwendel | Karwendel |
| Kunkel | distaff |
| Furunkel | boil furuncle |
| Halbdunkel | semidarkness |
| Halbonkel | half-uncle |
| Korpuskel | corpuscle |
| Karacke | carrack |
| Karbonat | carbonate |
| Kardone | cardoon |
| Karneol | carnelian |
| Karabiner | carabiner |
| Karabinier | carabinier |
| Karakal | caracal |
| Karaoke | karaoke |
| Karbon | Carboniferous |
| Kardinal | cardinal |
| kardinal | cardinal |