| Kopfweh | headache |
| köpfen | behead decapitate top head |
| Kopflehne | headrest |
| Koppler | coupling |
| Kopte | Copt |
| kopfig | cerebral |
| Kopeke | copeck kopeck |
| Kopf | head header heads |
| Kopfgeld | bounty |
| Kopftuch | headscarf kerchief head-kerchief |
| Kopie | copy duplicate blueprint manifold replica replication print reprint |
| Koppel | paddock coupler belt |
| Köper | twill |
| Köpfchen | brain head |
| kopflos | headless |
| kopfüber | headlong head first head over heels head-first headfirst |
| koppen | climb belch |
| köpfeln | head |
| Klopfen | knock |
| klopfen | knock beat tap thump |