| Kolumbide | pigeon |
| Kolumbien | Colombia |
| Kolubrine | culverin |
| Kolumbus | Columbus |
| Kolumbianer | Colombian |
| Kolumne | column |
| Kolumnist | columnist |
| Columbium | columbium |
| Columbia | Columbia |
| Kolloid | colloid |
| Kolonie | colony |
| Kolonnade | colonnade |
| Kolumbarium | columbarium |
| Columbus | Columbus |
| klumpig | lumpy |
| Kombi | station wagon |
| Klimbim | garbage noise |
| Zombie | zombie |
| komorbid | comorbid |
| morbide | morbid |