- Corniche
- Cornish pasty
- Corollary
- Coronet
- Corporal
- Corporal punishment
- Corporation
- Corporeal
- Corpus
- Correlate
- Correlated
- Correlation
- Correspond with
- Correspondency
- Corroboration
- Corrodent
- Councillor
- Counsellor
- Counselors
- Count
- Count on
- Count out
- Counter mine
- Counter move
- Counter plot
- Counter revolution
- Counter-argument
- Coup de theatre
- Coupled with
- Coupler
- Couplet
- Court of justice
- Courteously
- Couscous
- Covalent
- Covariance
- Cowry
- Cows milk
- Cowshed
- Coxcomb
- Coyly
- Coyote
- Crab-apple
- Crabbed
- Crack up
- Crackdown
- Cracking
- Cracking of finger joints
- Crackpot
- Cradle
- Creak
- Creaking noise
- Creaky
- Creater
- Creational
- Creatively
- Creature
- Credentials
- Credibility
- Credible
- Credulously
- Creed
- Crinoline
- Crises
- Criss-cross
- Criteria
- Critical time
- Critically
- Critter
- Crochet-work
- Cross-grained
- Cross-stitch
- Crossbar
- Crossbow
- Crossing
- Crotchet
- Croup
- Croupier
- Cruise control
- Crunk
- Crusade
- Crusader
- Crush
- Crushing
- Crutches
- Crux
- Cry for the moon
- Cry wolf
- Crystalline
- Crystallized
- Crystallography
- Ctrl
- Cubbyhole
- Cube
- Cubist
- Cubit
- Cumber
- Cunning
- Cunning person
- Cunningly