| Kloake | sewage system cloaca |
| Kloakentier | monotreme |
| Kloppe | a kind of |
| Kanake | Kanak wog |
| Krake | octopus kraken |
| Lake | brine |
| Slowake | Slovak |
| Kloben | bracket |
| Klonus | clonus |
| Klopfen | knock |
| klopfen | knock beat tap thump |
| Kloset | toilet |
| Klotho | Clotho |
| klönen | chat speak |
| klonen | clone |
| Ekloge | eclogue |
| Klo | loo toilet lavatory bog convenience |
| Klon | clone |
| Klopfer | door knocker carpet beater |
| Klops | meatball howler |