- Cryptonym
- Cachexia
- Cacophonous
- Cacophony
- Cacti
- Cactus
- Cad
- Caecilian
- Caesar
- Cahoots
- Caravanserai
- Carbolic acid
- Carbonize
- Carburetor
- Carcass
- Carcinoma
- Card
- Cardamom seed
- Cardinal virtues
- Cardiogram
- 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
- Cdl
- Cdot
- Ce
- Cease
- Ceaslessly
- Ceiling
- Celebrate
- Celestial nymph
- Celibacy
- Cello
- Cellophane
- Centralize
- Centre
- Centre of activities
- Centurial
- Centurian
- Cerbera odollam
- Cereal
- Cereals
- Cerebral haemorrhage
- Cerebration
- Certainly
- Certes
- Chaithram
- Chakyar
- Chalan
- Chalaza
- Chalet
- Chalk
- Challoner
- Chamber
- Chamber pot
- Chamberlin
- Chambermaid
- Chameleon
- Chana dal
- Chancery
- Chancre
- Chancy
- Chandler