| Konstellation | constellation |
| Konsekration | dedication |
| Konsultation | consultation |
| Kontemplation | contemplation |
| Installation | installation installation art |
| Kondensation | condensation |
| Konkatenation | concatenation |
| Konspiration | conspiracy |
| Konfabulation | confabulation |
| Konstitution | constitution |
| Konstruktion | construction |
| Konversation | conversation |
| Konziliation | reconciliation settlement |
| Destillation | distillation |
| Kollation | collating collation |
| Oszillation | oscillation |
| Korrelation | correlation association |
| Postulation | postulation |
| Konkretion | concretion |
| Konsumtion | consumption |