| Kondition | condition |
| Konditional | conditional conditional mood |
| Konditionalis | conditional |
| Konditional I | present conditional |
| Konditionierer | conditioner |
| Konduktion | conduction |
| konditionieren | condition |
| Konditional II | past conditional |
| Konditor | confectioner |
| Koalition | coalition |
| Kognition | cognition |
| Konkretion | concretion |
| Konsumtion | consumption |
| Konditionalsatz | conditional sentence |
| Konditorin | pastry chef |
| Konfektion | make manufacture ready-to-wear off-the-peg clothing off-the-rack clothing clothing industry |
| Konfusion | bewilderment |
| Konvention | convention |
| Konzeption | conception |
| Königin | queen |