| Konfluenz | confluence |
| konfus | confused |
| konfuse | confuse |
| Kongruenz | agreement, concord congruity |
| konfluent | confluent |
| Konfekt | candy |
| Konfutse | Confucius |
| Konvent | convent |
| Können | competence ability |
| können | can be able to may be allowed to know |
| Konferenz | conference |
| Konfidenz | confidence trust |
| Konkani | Konkani |
| Konkurs | bankruptcy |
| Konsens | consensus consent |
| Konstanz | constancy Constance |
| Konsul | consul |
| Konsum | consumption |
| Kontur | contour outline |
| konform | compliant conformable |