| Klo | loo toilet lavatory bog convenience |
| Klon | clone |
| Klops | meatball howler |
| Klotz | block |
| Kloß | dumpling lump |
| Kloben | bracket |
| Klonus | clonus |
| Kloset | toilet |
| Klotho | Clotho |
| klönen | chat speak |
| klonen | clone |
| Kloake | sewage system cloaca |
| Kloppe | a kind of |
| Klöten | ball bollock testicle |
| klobig | bulky chunky heavy clumsy rough uncouth |
| Klopfen | knock |
| klopfen | knock beat tap thump |
| Klosett | toilet |
| Klofrau | loo attendant |
| Klopfer | door knocker carpet beater |