| cocktail | cocktail |
| cocktail Molotov | Molotov cocktail |
| coco | coke |
| Coco Chanel | Coco Chanel |
| Coco Lapin | Rabbit |
| Coco Lee | CoCo Lee |
| Cocoa | Cocoa |
| COCOMO | COCOMO |
| cocon | cocoon |
| cocorico | cock |
| cocotier | coconut tree |
| cocotier de mer | coco-de-mer |
| cocotte | casserole |
| cocotte-minute | pressure cooker |
| cocu | cuckold |
| cocufier | cuckold |
| Cocyte | Cocytus |
| coda | coda |
| codage | coding |
| Codage arithmétique | Arithmetic coding |
| Codage de Huffman | Huffman coding |
| Codage des caractères chinois | Chinese character encoding |
| Codage Manchester | Manchester code |
| Codage Manchester différentiel | Differential Manchester encoding |
| Codage NRZ | Non-return-to-zero |
| Codage NRZI | Non-return-to-zero |
| CODATA | Committee on Data for Science and Technology |
| code | code |
| code administratif | administrative body |
| Code AITA | IATA airport code |
| Code américain normalisé pour l'échange d'information | American Standard Code for Information Interchange |
| Code banque | Sort Code |
| Code Baudot | Baudot code |
| Code BCH | BCH code |
| Code chiffres-sons | Mnemonic major system |
| code civil | civil law |
| Code civil du Québec | Civil Code of Quebec |
| Code civil suisse | Zivilgesetzbuch |
| code de conduite | code of conduct |
| Code de déontologie | Deontological ethics |
| Code de Golay | Binary Golay code |
| Code de Goppa | Goppa code |
| Code de Hamming | Hamming code |
| Code de la Bible | Bible code |
| Code de la route | Highway Code |
| code de mise en pratique | code of practice |
| Code de Nuremberg | Nuremberg Code |
| code de pays | country code |
| Code de pointage | Code of Points |
| Code de procédure | Law procedure |
| Code de Taihō | Taihō Code |
| Code de Théodose | Codex Theodosianus |
| Code des États-Unis | United States Code |
| Code Division Multiple Access | Code division multiple access |
| Code DX | DX encoding |
| code d’accès | access code |
| Code ECO | List of chess openings |
| Code Geass | Code Geass |
| Code génétique | Genetic code |
| Code Hays | Production Code |
| Code impénétrable | Obfuscated code |
| Code international de nomenclature botanique | International Code of Botanical Nomenclature |
| Code international de nomenclature zoologique | International Code of Zoological Nomenclature |
| Code international des signaux maritimes | International maritime signal flags |
| Code international pour la nomenclature des plantes cultivées | International Code of Nomenclature for Cultivated Plants |
| Code Konami | Konami Code |
| Code linéaire | Linear code |
| Code Lyoko | Code Lyoko |
| code machine | machine code |
| Code NACE | Nomenclature Generale des Activites Economiques dans L`Union Europeenne |
| Code noir | Code Noir |
| Code objet | Object file |
| Code OTAN | NATO reporting name |
| Code Parsons | Parsons code |
| code pays | country code |
| code postal | zip code |
| Code postal aux Pays-Bas | List of postal codes in the Netherlands |
| Code postal en France | List of postal codes in France |
| Code price look-up | Price Look-Up codes |
| Code produit électronique | Electronic Product Code |
| Code Q | Q code |
| Code QR | QR Code |
| Code Red | Code Red |
| code secret | cipher |
| code source | source code |
| Code universel des produits | Universal Product Code |
| code vestimentaire | dress code |
| Code Z | Z code |
| code à barres | bar code |
