| Konspiration | conspiracy |
| Konsekration | dedication |
| konspirativ | conspirative |
| Inspiration | inspiration |
| Konsultation | consultation |
| Konfirmation | confirmation |
| Konstitution | constitution |
| Aspiration | aspiration |
| Exspiration | exhalation expiration |
| Perspiration | perspiration |
| Komparation | comparison |
| Kooperation | cooperation co-operation |
| Kondensation | condensation |
| Konkretion | concretion |
| Konsumtion | consumption |
| Konurbation | conurbation |
| Kondition | condition |
| Konfiguration | configuration |
| Konfiskation | confiscation |
| Konformation | conformation |