| Krokodilstränen | crocodile tear |
| Krokodilsträne | crocodile tear |
| Krokodilklemme | alligator clip |
| Krokodilfarm | Crocodile Farm |
| Krokodilwächter | Egyptian plover |
| Krokodil | crocodile |
| Kordilleren | American Cordillera |
| Krokodilritterling | matsutake |
| Krokoit | crocoite |
| Kronkorken | crown cap crown cork |
| Kokosfaser | coir |
| Kokolores | balderdash nonsense poppycock |
| Kokosinseln | Cocos Islands |
| kodieren | encode code |
| Komödiant | comedian |
| korrodieren | corrode |
| erodieren | erode |
| Prügelstrafe | corporal punishment |
| Crosstrainer | elliptical trainer |
| Königstreue | royalism |