- Cryptonym
- 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
- 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
- Causeway
- Causing
- Causing delight
- Causing grief
- Causing to
- Cautery
- Cavalry
- Cave temple
- Caveat emptor
- Cavernous
- Caviar
- Cellulose
- Cemetery
- Cense
- Censer
- Censured
- Centenario
- Centerpiece
- Centesimal
- Central conic
- Central travancore
- Certificate
- Certified
- Cerumen
- Cervical
- Cessation
- Cession
- Chagrined
- Chain bridge
- Chain of waves
- Chain printer
- Chain-smoker
- Chained to oar
- Chairmanship
- Chandler
- Change
- Change colour
- Change hande
- Change hands
- Change of colour
- Change of shape
- Change ones mind
- Change the subject
- Channa dal
- Chanting
- Chants
- Chaos
- Chap fallen
- Charity begins at home
- Charmer
- Charming girl
- Charter