| Karambolage | collision |
| Karambolagen | billiards |
| Carambola | carambola |
| Karamelle | caramel |
| Kardiologe | cardiologist |
| Kläranlage | sewage treatment plant wastewater treatment plant |
| Garbologe | garbologist |
| Kabotage | cabotage |
| Karbolsäure | carbolic acid |
| Karbonat | carbonate |
| Karamell | caramel |
| Karaoke | karaoke |
| Karavelle | caravel |
| Karawane | caravan |
| Kardiologie | cardiology |
| Karodame | queen of diamonds |
| Karsamstag | Holy Saturday |
| Parasitologe | parasitologist |
| Farandole | farandole |
| Parallaxe | parallax |