| Kopflaus | head louse |
| Kopfhaut | scalp |
| kopflos | headless |
| Kopfband | brace |
| Kopfjagd | headhunting |
| Kopfnuss | brain-teaser |
| Kopfnuß | brainteaser |
| Kopfball | header |
| Kopula | copula |
| Applaus | applause |
| Klaus | kloyz |
| Kornhaus | granary |
| Kaufhaus | department store |
| Kopfjäger | headhunter |
| Kopflehne | headrest |
| Kopfstoß | headbutt |
| Kopfweh | headache |
| Kopiar | cartulary |
| Koppler | coupling |
| Kopplung | coupling |