- Costly
- Costume
- Costume designer
- Costumer
- Costus
- Cot
- Coterminous
- Cottage
- Cottage industry
- Cotter
- Cotton planks
- Cotyledon
- Couch
- Couchant
- Could
- Coulter
- Counter-productive
- Counteract
- Counteraction
- Counterculture
- Counterfoil
- Countermeasure
- Counterpoint
- Country
- Country-made
- Countryman
- Countryside
- County clerk
- County council
- Coverlet
- Covert
- Covertures
- Covetously
- Cow
- Cow lick
- Cow sacrifice
- Cow-dung beetle
- Cow-herd-woman
- Cowardly
- Cowherds
- Cowhide
- Craftmanship
- Craftsmanship
- Crafty plan
- Craggy
- Crammer
- Cranberry
- Crank
- Cranky
- Crappy
- Crass
- Craving for food
- 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
- Cuckoldress
- Cud
- Cuddlesome
- Cue
- Cull
- Culprit
- Cultivable
- Cultivate
- Cultivated land
- Cur
- Curacy