| Kammratte | ctenomyid tuco-tuco |
| Kanalratte | sewer rat |
| Karate | karate |
| Landratte | landlubber lubber |
| Sackratte | crab louse pubic louse |
| Kasematte | casemate |
| Karmette | Tenebrae |
| Karotte | baby carrot carrot |
| Kameradin | friend |
| Kammgarn | worsted stamen |
| Kamurke | closet |
| Kamera | camera |
| Kamerad | companion mate comrade buddy chum fellow |
| Kamikaze | kamikaze |
| Kammerton | standard pitch |
| Kammlinie | crest line comb line |
| Kampagne | campaign |
| Klammeraffe | spider monkey stapler at sign commercial at at symbol at crimper destapler |
| Baumralle | New Guinea flightless rail |
| Bisamratte | muskrat musquash |