- Contemptuousness
- Contender
- Cordate
- Conterminous
- Contextualise
- Contexture
- Continence
- Contravention
- Contribute
- Contributor
- Contrite
- Controls
- Controversialist
- Contumely
- Coprology
- Convictions
- Convining
- Coomb
- Convulsive disorders
- Cook up
- Cookbook
- Cornflake
- Cooker
- Cookie
- Cooking vessel
- Cool mind
- Corn
- Corn exchange
- Corn heap
- Corn pone
- Cornal desire
- Cornea
- Cornelian
- Cornered
- Cornet
- Cornucopia
- Corolla
- Corona
- Coronary artery
- Coronary thrombosis
- Coronation
- 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
- Crazy
- Crc
- Creamy
- Create
- Creche
- Credence
- Credit
- Criminology
- Crimp
- Crinkly
- Cripple
- Crispbread
- Critic
- Criticise
- Crock
- Crockery
- Crocodile tears
- Crown princess
- Crowned
- Crucible
- Crucifixion
- Cruciform
- Crude
- Cruelly
- Crypt
- Crystalize
- Crystallisation
- Crystallization
- Cs
- Ct
- Cubbish
- Cube root