| C | Championship
| Others |
| C | Chanel
| Others |
| C | Chapel
| Others |
| C | Chapter
| Others |
| C | Character
| Others |
| C | Characters
| Others |
| C | Charity
| Others |
| C | Charlotte, North Carolina (mint mark on early United States gold coins)
| Others |
| C | Charmed quark
| Others |
| C | Cheap
| Others |
| C | Cheese
| Others |
| C | Cher
| Others |
| C | Chicken
| Others |
| C | Child
| Others |
| C | children and adolescents
| Others |
| C | Chimpanzee
| Others |
| C | Cholesterol
| Others |
| C | Cholesterolin
| Others |
| C | Christ
| Others |
| C | Christian
| Others |
| C | Christmas
| Others |
| C | Chrysanthemum
| Others |
| C | Chrysler
| Others |
| C | Cilt
| Others |
| C | Cindy
| Others |
| C | circa - about
| Others |
| C | Circle
| Others |
| C | Circular
| Others |
| C | Circumference
| Others |
| C | Cited
| Others |
| C | Citizen
| Others |
| C | Citizens
| Others |
| C | Citrus
| Others |
| C | City
| Others |
| C | Civilization
| Others |
| C | Clarification
| Others |
| C | Class
| Others |
| C | Classic
| Others |
| C | Classification
| Others |
| C | Cleanse
| Others |
| C | Clear
| Others |
| C | Cleveland
| Others |
| C | Cleverness factor
| Others |
| C | Click
| Others |
| C | Climbing
| Others |
| C | Clinical
| Others |
| C | Clock
| Others |
| C | Cloud
| Others |
| C | Club
| Others |
| C | Clueless
| Others |