| Konjunktion | conjunction |
| konjunktional | conjunctional |
| Konduktion | conduction |
| konjunktiv | conjunctive |
| Konjunktiv | subjunctive conjunctive mood conjunctive conjunctive mode |
| Konjugation | conjugation |
| Konsumtion | consumption |
| Konfektion | make manufacture ready-to-wear off-the-peg clothing off-the-rack clothing clothing industry |
| Konjunktur | economic situation boom |
| Konsumption | merger consumption |
| Kontraktion | contraction |
| Konvention | convention |
| Disjunktion | disjunction exclusive disjunction |
| Subjunktion | subordinating conjunction |
| Inunktion | embrocation unction |
| Kondensation | condensation |
| Konkretion | concretion |
| Konsultation | consultation |
| Konurbation | conurbation |
| Kondition | condition |