| konstruktiv | design constructive |
| Konstruktion | construction |
| Konstruktivismus | constructivism |
| Konstruktor | constructor |
| Instruktiv | instructive |
| instruktiv | instructive |
| obstruktiv | obstructive obstructively |
| Konstrukteur | designer constructer constructor |
| konsekutiv | consecutive |
| konservativ | conservative tory |
| konstitutiv | founding |
| destruktiv | destructive |
| Kontrakt | compact contract |
| konjunktiv | conjunctive |
| Konjunktiv | subjunctive conjunctive mood conjunctive conjunctive mode |
| konstruiert | inkhorn |
| Konstantin | Constantine |
| Kontraktion | contraction |
| Kontraktur | contracture |
| Rekonstruktion | reconstruction |