| Concierge | doorkeeper caretaker |
| Concorde | Concorde |
| conchieren | conche |
| Conche | conche |
| Congee | congee |
| Contergan | thalidomide |
| lancieren | launch |
| Sauciere | gravy boat sauce boat saucière |
| forcieren | expedite |
| Collier | necklace |
| Cordierit | cordierite |
| Pioniere | avant-garde |
| Voliere | aviary |
| Niere | kidney |
| monieren | criticise |
| montieren | mount install |
| sondieren | probe sound |
| Scherge | henchman grunt vassal |
| Coniin | coniine |
| Conquest | conquest |