| konstitutiv | founding |
| Konstitution | constitution |
| Konstituente | constituent |
| konsekutiv | consecutive |
| konspirativ | conspirative |
| konstruktiv | design constructive |
| Konstantin | Constantine |
| konservativ | conservative tory |
| konstitutive Regel | constitutive rule |
| Institution | fixture institution |
| Institut | institute institution institution building legal institution |
| instinktiv | instinctive |
| Komitativ | comitative case |
| Konspiration | conspiracy |
| Konsultation | consultation |
| Konzetti | extended metaphor |
| konfrontativ | confrontational contrastive |
| konjunktiv | conjunctive |
| Konjunktiv | subjunctive conjunctive mood conjunctive conjunctive mode |
| konsanguin | consanguineous |