| cloche | duffer |
| cloche de plongée | diving bell |
| clocher | be wrong |
| clocher-mur | bell-gable |
| cloches de Pâques | Easter bunny |
| clochette | bluebell |
| Clodion le Chevelu | Clodio |
| Clodius Albinus | Clodius Albinus |
| Clodius Pulcher | Publius Clodius Pulcher |
| Clodoald | Clodoald |
| Clodoaldo Tavares de Santana | Clodoaldo |
| Clodomir Ier | Chlodomer |
| cloison | partition |
| cloison sèche | drywall |
| Cloisonnage | Division |
| cloisonner | screen off |
| Cloisonnisme | Cloisonnism |
| clonage | cloning |
| Clonage en aveugle | Shotgun cloning |
| Clonage humain | Human cloning |
| Clonazépam | Clonazepam |
| clone | clone |
| Clone High | Clone High |
| Clone troopers | Clone troopers |
| cloner | clone |
| Clonmel | Clonmel |
| Clonorchis sinensis | Clonorchis sinensis |
| Clopas | Alphaeus |
| clope | smoke |
| Clopidogrel | Clopidogrel |
| cloporte | wood louse |
| Cloporte rugueux | Porcellio scaber |
| cloque | blister |
| clore | round off |
| clos | closed |
| Clos Haut-Peyraguey | Clos Haut-Peyraguey |
| Clos Lucé | Clos Lucé |
| Close air support | Close air support |
| Close combat | Hand to hand combat |
| Clostridium tetani | Clostridium tetani |
