| Consommé | consommé |
| Konsommee | consomme |
| Conté | Conté |
| Concorde | Concorde |
| Konsole | console |
| Konsorte | consortium member |
| Konsum | consumption |
| Komsomol | Komsomol |
| Monosomie | monosomy |
| Gin Rommé | gin rummy |
| nomma | once again |
| Rommé | rummy |
| Conche | conche |
| Condylom | genital wart |
| Condyloma | genital wart |
| Congee | congee |
| Coniin | coniine |
| Conquest | conquest |
| contra | contra |
| Conakry | Conakry |