| Kontorsionist | contortionist |
| Kontorsion | contortion |
| Konformist | conformist |
| Konversion | conversion |
| Kantonist | cantonist |
| Kantönligeist | bigot |
| bonfortionös | superb scrumtrulescent |
| Kondominium | condominium |
| Konformismus | conformism |
| Kontagiosität | contagiousness |
| Konterschnaps | hair of the dog |
| Kontrollliste | checklist |
| konformistisch | conformist |
| Konfession | denomination |
| Konformität | conformity |
| Konfusion | bewilderment |
| Konklusion | conclusion |
| Konkussion | concussion |
| Konsonant | consonant |
| Kontinent | continent |