| Konvokation | convocation |
| Konnotation | connotation |
| Kollokation | collocation |
| Konduktion | conduction |
| Konsekration | dedication |
| Konurbation | conurbation |
| Konfektion | make manufacture ready-to-wear off-the-peg clothing off-the-rack clothing clothing industry |
| Konfiskation | confiscation |
| Konformation | conformation |
| Konjugation | conjugation |
| Konvention | convention |
| Konversation | conversation |
| Provokation | provocation |
| Koedukation | coeducation |
| Koevolution | coevolution |
| Kondensation | condensation |
| Konkretion | concretion |
| Konspiration | conspiracy |
| Konsultation | consultation |
| Konsumtion | consumption |