| Kontrollbox | checkbox |
| Kontrollen | control |
| Kontrolleur | ticket inspector |
| Kontrolle | inspection control |
| Kontroller | controller |
| Kontrollraum | control room |
| Kontrollturm | control tower |
| kontrolliert | controlled certified checked |
| Controller | controller |
| Controlling | management accounting and control |
| Kontorsion | contortion |
| Kontraalt | contralto |
| Kontrolleurin | ticket inspector |
| Kontrollliste | checklist |
| Kontrollpunkt | checkpoint |
| kontrollierbar | controllable |
| Kontraktion | contraction |
| Kontrollfreak | control freak |
| Kontroverse | controversy dispute |
| kontrollieren | check inspect |