| Contergan | thalidomide |
| contra | contra |
| kontern | counter |
| untertan | subject |
| Untertan | subject |
| Untergang | downfall sinking decline |
| Concierge | doorkeeper caretaker |
| Contenance | composure |
| Content | content |
| Konter | counter-attack |
| Konterfei | portrait |
| Kontra | con double |
| kontra | against versus |
| Montreal | Montreal |
| Montréal | Montreal |
| Montserrat | Montserrat |
| Röntgen | X-ray |
| röntgen | X-ray |
| konter- | counter- |
| kontra- | counter- |