| Konfidenz | confidence trust |
| Konferenz | conference |
| Koinzidenz | coincidence |
| Kondiment | condiment |
| Kondolenz | condolence |
| Konfidenzniveau | confidence level |
| Konfluenz | confluence |
| Konsistenz | consistency |
| Kontinent | continent |
| Kontingenz | contingency attunement |
| Pönitenz | penance |
| Konfekt | candy |
| Konoid | conoid |
| Kontingent | contingent |
| kontingent | contingent |
| Konvent | convent |
| Könige | Kings |
| Können | competence ability |
| können | can be able to may be allowed to know |
| konfuse | confuse |