| Klappmütze | hooded seal |
| Klapsmühle | madhouse |
| Klappbett | shakedown |
| Klappbrücke | bascule bridge |
| klappe | cut |
| Klappe | flap mouth |
| Klamotte | big lump of rock rag rock stone brick shattered dirt gear junk book old oldie play trashy ham lowbrow farce bawdy cheap droll drollery riotous |
| Klappmesser | jack-knife jackknife |
| Krappwurzel | madder |
| Bademütze | bathing cap |
| Kochmütze | toque |
| Klamotten | clothes |
| Klapp- | folding |
| Klappen | folding |
| klappen | fold work |
| Klappentext | blurb |
| Klärgrube | septic tank |
| klappbar | collapsible |
| Klampe | cleat |
| Klapper | rattle |