- Callosity
- Cellulite
- Coarsely
- Cymbalist
- Conjunctivits
- Cornflour
- Coterminus
- Ccd
- Cachexia
- Cacophonous
- Cacophony
- Cacti
- Cactus
- Cad
- Caecilian
- Caesar
- Cahoots
- Calk
- Call at
- Call attention to
- Call back
- Call by
- Call centre
- Call in question
- Call names
- Call to action
- Call to bar
- Call upon
- Campaigner
- Campanology
- Camwhore
- Can of worms
- Canalize
- Canard
- Cancerous
- Candicamera
- Candidates
- Candle
- Candy
- Cane chair
- Capon
- Capriccioso
- Capriole
- Capstone
- Capsular
- Capsule
- Captagon
- Captivate
- Captivating
- Captive
- Captivity
- Captor
- Captured
- Capuchin
- Carabao
- Carabiniere
- Caracole
- Cardiomyopathy
- Care about
- Care of
- Careen
- Career woman
- Carefrontation
- Careful
- Caretaker
- Carfax
- Caricature
- Carnatic music
- Carnation
- Carnivore
- Casein
- Cash crop
- Cash in
- Cashew
- Casing
- Casket
- Catalepsy
- Cast a long shadow
- Cast away
- Cast iron
- Cat bird
- Cat hood
- Catacomb
- Catalogue
- Catalonia
- Catarrh
- Catastrophe
- Catawampus
- Catwalk
- Caucus
- Caudal
- Caught
- Cauldron
- Causal
- Causation
- Causationist
- Cause of action
- Cause-effect relation
- Causeway
- Causing