| Konföderation | confederation |
| Konfiguration | configuration |
| Konformation | conformation |
| Föderation | federation |
| Kooperation | cooperation co-operation |
| Kondensation | condensation |
| Konkatenation | concatenation |
| Konsekration | dedication |
| Konspiration | conspiracy |
| Konfabulation | confabulation |
| Konfektion | make manufacture ready-to-wear off-the-peg clothing off-the-rack clothing clothing industry |
| Konfirmation | confirmation |
| Konfiskation | confiscation |
| Konfrontation | confrontation |
| Konnotation | connotation |
| Konversation | conversation |
| Konvokation | convocation |
| Konzelebration | concelebration |
| Konzentration | concentration |
| Moderation | moderation presentation |