| cliente abituale | patron |
| cliente eventuale | prospect |
| clientela | patronage |
| clienti | clientele |
| Cliff Allison | Cliff Allison |
| Cliff Burton | Cliff Burton |
| Cliff Martinez | Cliff Martinez |
| Cliff Richard | Cliff Richard |
| Clifford Geertz | Clifford Geertz |
| Clifton | Clifton |
| clima | climate |
| Clima alpino | Alpine climate |
| Clima antartico | Climate of Antarctica |
| clima continentale | continental climate |
| Clima della Sicilia centrale | Continental Mediterranean climate |
| clima desertico | desert climate |
| clima equatoriale | equatorial climate |
| clima mediterraneo | Mediterranean climate |
| clima montano | mountain climate |
| clima oceanico | oceanic climate |
| Clima polare | Polar climate |
| clima sociale | social climate |
| Clima subartico | Subarctic climate |
| clima subtropicale | subtropics |
| Clima tropicale | Tropical climate |
| climalterante | climate-changing |
| climaterio | climacteric |
| climatico | climatic |
| Climatizzazione | Air conditioning |
| climatologa | climatologist |
| climatologia | climatology |
| climatologico | climatological |
| climatologo | climatologist |
| climax | climax |
| Climene | Clymene |
| climàtico | climatic |
| Clinamen | Clinamen |
| clinch | clinch |
| clinica | medicine |
| clinico | clinical |
| Clinker di cemento | Cement clinker |
| Clinoclasio | Clinoclase |
| Clinofobia | Clinophobia |
| Clinohumite | Clinohumite |
| clinometro | clinometer |
| Clinozoisite | Clinozoisite |
| Clint Eastwood | Clint Eastwood |
| Clinton | Clinton |
| Clintonite | Clintonite |
| Clio | Clio |
| Cliometria | Cliometrics |
| clip | clip |
| clipeo | clipeus |
| Clissa | Klis |
| Clisson | Clisson |
| Clistene | Cleisthenes |
| Clistene di Sicione | Cleisthenes of Sicyon |
| clistere | enema |
| Clitellata | Clitellata |
| Clitennestra | Clytemnestra |
