| Kollaborateur | collaborator |
| Kollaborateurin | collaborator |
| Kollaboration | collaboration |
| kollaborativ | collaborative |
| Koloratur | coloratura |
| Kolporteur | colporter colporteur |
| Kollaterale | collateral |
| kollaborieren | collaborate |
| Kolabaum | kola kola nut tree |
| Kollokation | collocation |
| Kolumbianer | Colombian |
| kollabieren | collapse |
| kollateral | collateral |
| Rollrate | roll rate |
| Vollernter | harvester |
| Zollbeamter | customs officer |
| Kalabrier | Calabrian |
| Elaborat | concoction drawing up |
| Elaboration | development |
| Saboteur | saboteur |