| cocktail | cocktail |
| cocktail party | cocktail party |
| cocktailbar | cocktail lounge |
| Coclé | Coclé Province |
| Coco Chanel | Coco Chanel |
| coco de mer | coco-de-mer |
| cocon | cocoon |
| Cocoon | Enveloping Prey |
| Cocorivier | Coco River |
| Cocos Eilanden | Cocos Islands |
| Cocoseiland | Cocos Island |
| Cocoseilanden | Cocos Islands |
| Cocosplaat | Cocos Plate |
| Cocytus | Cocytus |
| COD | COD |
| coda | coda |
| code | code |
| Code INSEE | INSEE |
| Code Lyoko | Code Lyoko |
| Code Napoléon | Civil code |
| Code sharing | Codeshare agreement |
| Code-invouwing | Code folding |
| Codegua | Codegua |
| codenaam | code name |
| coderen | ciphering |
| codering | encoding |
| codex | codex |
| Codex Alexandrinus | Codex Alexandrinus |
| Codex Alimentarius | Codex Alimentarius |
| Codex Argenteus | Codex Argenteus |
| Codex Bezae | Codex Bezae |
| Codex Borbonicus | Codex Borbonicus |
| Codex Borgia | Codex Borgia |
| Codex Calixtinus | Codex Calixtinus |
| Codex Ephraemi Rescriptus | Codex Ephraemi Rescriptus |
| Codex Gigas | Codex Gigas |
| Codex Hammurabi | Code of Hammurabi |
| Codex Leningradensis | Leningrad Codex |
| Codex Manesse | Codex Manesse |
| Codex Mendoza | Codex Mendoza |
| Codex Regius | Codex Regius |
| Codex Sinaiticus | Codex Sinaiticus |
| Codex van Huexotzinco | Huexotzinco Codex |
| Codex Vaticanus | Codex Vaticanus |
| codeïne | codeine |
| Codfisheiland | Codfish Island |
| codicil | codicil |
| codificatie | coding |
| codificeren | encode |
| CODM de Meknes | CODM Meknès |
| Codogno | Codogno |
| coecum | blind gut |
| coeliakie | coeliac disease |
| Coelius | Caelian Hill |
| Coelophysidae | Coelophysidae |
| Coelophysoidea | Coelophysoidea |
| Coelurosauria | Coelurosauria |
| Coenobita | Coenobita |
| Coenobitidae | Coenobitidae |
| Coenraad Jacob Temminck | Coenraad Jacob Temminck |
| Coesfeld | Coesfeld |
| Coesiet | Coesite |
| Coeus | Coeus |
| Coffee County | Coffee County |
| Coffeeshop | Coffee |
| coffeïne | caffeine |
