| Kontakt | contact |
| Kontaktzaun | electric fence |
| Kontrakt | compact contract |
| Kontaktgift | contact poison |
| Konfekt | candy |
| Kontaktdaten | contact details |
| Kontaktdruck | contact print |
| Kontaktzunge | reed |
| Kontaktlinse | contact lens |
| Kontext | context |
| Kontrast | contrast |
| konstant | constant constantly |
| kontaktieren | contact |
| kontaktscheu | introvert unsociable |
| intakt | intact |
| kompakt | compact |
| Kontor | office |
| Kontraalt | contralto |
| Konvent | convent |
| Konflikt | conflict clash |