| Konjugation | conjugation |
| Konjunktion | conjunction |
| Konduktion | conduction |
| Konsultation | consultation |
| Konsumtion | consumption |
| Konurbation | conurbation |
| Konnotation | connotation |
| Konsumption | merger consumption |
| Konvokation | convocation |
| Kolligation | colligation |
| Koedukation | coeducation |
| Koagulation | coagulation |
| Kommutation | substitution test |
| Kopulation | copulation |
| Kondensation | condensation |
| Konkretion | concretion |
| Konsekration | dedication |
| Konspiration | conspiracy |
| konjunktional | conjunctional |
| konjunktiv | conjunctive |
| Konjunktiv | subjunctive conjunctive mood conjunctive conjunctive mode |