| Kernfamilie | nuclear family |
| Kleinfamilie | nuclear family |
| Überfamilie | superfamily |
| Wortfamilie | word family |
| Gastfamilie | host family |
| Subfamilie | subfamily |
| Unterfamilie | subfamily |
| Familie | family |
| Keratitis | keratitis |
| Kernchemie | nuclear chemistry |
| Kernenergie | atomic energy nuclear power |
| Kernhülle | nuclear membrane |
| Keramik | pottery |
| Kernfusion | nuclear fusion |
| Kernschmelze | nuclear meltdown |
| Kernwaffe | nuclear weapon |
| keramisch | ceramic |
| Infamie | infamy |
| Mehrfamilien- | multifamily |
| Großfamilie | extended family |