| Klapperstorch | White Stork |
| Klappenloch | glory hole |
| Klappertopf | rattle |
| Plapperloch | Jabberwock |
| Klappfenster | fortochka |
| Klapperpost | Clapper Post |
| Klapptisch | folding table |
| Klappenschrank | switchboard |
| Klappentext | blurb |
| Klapperkiste | jalopy |
| Klavierstuhl | piano stool |
| klassistisch | classist |
| Klapper | rattle |
| Klappmesser | jack-knife jackknife |
| Klappstuhl | folding chair |
| Klavierstunde | piano lesson |
| klappern | clatter click rattle |
| klastisch | clastic |
| Lappisch | Lapp |
| läppisch | childish |