- Corn exchange
- Corn heap
- Corn pone
- Cornal desire
- Cornea
- Cornelian
- Cornered
- Cornet
- Cornucopia
- Corolla
- Corona
- Coronary artery
- Coronary thrombosis
- Coronation
- Corrugate
- Corsage
- Corselet
- Coruscation
- Coryza
- Cosmetic preparation
- Cosmogonal suktha
- Cosmography
- Cosmological
- Cosmology
- Cost-benefit
- Costs
- Costume jewellery
- Cosy
- Cottager
- Cotton up
- Counter-intelligence
- Counter-tenor
- Counterfeit
- Counterfeit note
- Counterpoise
- Countersign
- Counterstrike
- Countervailing
- Counting
- Countrified
- Country club
- Country-craft
- Coverage
- Coverity
- Covers
- Cow-dung
- Cow-dung heap
- Coward
- Cowcatcher
- Cowdung cake
- Cowherd
- Craftsman
- Cram
- Cramp
- Crampon
- Crankily
- Cranny
- Crap
- Crape
- Crash
- Crash helmet
- Crave
- Craving
- Crawlingly
- Crazy
- Crc
- Creamy
- Create
- Creche
- Credence
- Credit
- Criminology
- Crimp
- Crinkly
- Cripple
- Crispbread
- Critic
- Criticise
- Crock
- Crockery
- Crocodile tears
- Cross-dressing
- Cross-hands
- Cross-ply
- Crossness
- Crosswise
- Crotch
- Croton plant
- Cruise missile
- Cruiser
- Crumbling
- Crump
- Crumpet
- Crushed
- Crust
- Crustacean
- Crutch
- Cry
- Cry blue murder
- Cry down