- Cryptonym
- Caesura
- Cafe
- Camellia
- Ception
- Circumambulation
- Coamings
- Comminute
- Conjunctivits
- Cornflour
- Coterminus
- Ccd
- Cachexia
- Cacophonous
- Cacophony
- Cacti
- Cactus
- Cad
- Caecilian
- Caesar
- Cahoots
- Callousness
- Calls distance
- Calluses
- Calm
- Calote
- Calumet
- Calumny
- Calves
- Cam
- Cambric
- Came in view of
- Camouflaged
- Camp
- Camp bed
- Canine tooth
- Cannabis sativa
- Cannikin
- Cannon
- Cannonade
- Cannonball
- Cannot be blamed
- Cannot resist
- Canoe
- Canon law
- Canonist
- Canopied pandal
- Capon
- Capriccioso
- Capriole
- Capstone
- Capsular
- Capsule
- Captagon
- Captivate
- Captivating
- Captive
- Captivity
- Captor
- Captured
- Capuchin
- Carabao
- Carabiniere
- Caracole
- Carol
- Carpel
- Carpenter ant
- Carpet bag
- Carpus
- Carrier
- Carrion crow
- Carry a torch for
- 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