- Court-martial
- Courtesan
- Courtier
- Cousin
- Covenant
- Cover
- Covering
- Covert place
- Covertness
- Covetous
- Cow pox
- Cowardice
- Cowboy
- Cowhand
- Cowherdess
- Cows udder
- Crabby
- Crack
- Crackerjack
- Cracking the point of fingers
- Crackling
- Cracks
- Craft
- Craze
- Crazed
- Creamery
- Created
- Creation
- Creative
- Creative writer
- Creature neither male or female
- Credibly
- Creditable
- Creditor
- Credo
- Creek
- Creepy
- Cremation ground
- Crematorium
- Cremulator
- Crepuscular
- Crescendo
- Crest-jewel
- Crestfallen
- Crib
- Cricketer
- Crime
- Crime sheet
- Criminal code
- Criminal jurisprudence
- Crone
- Crony
- Croquette
- Cross
- Cross voting
- Crowd out
- Crowded market
- Crumpled
- Crown prince
- Crown wheel
- Crowns
- Crucified
- Crucifix
- Crucify
- Cruel persons
- Crying
- Crypto
- Crypto communist
- Crystal
- Crystallize
- Crystals
- Csi
- Cub
- Cubic root
- Cubicle
- Cuckold
- Cucumber
- Cuddly
- Cudgel
- Cui bono
- Cully
- Cultivated
- Cultivating
- Curate
- Curb
- Curcuma amada
- Cure
- Curfew
- Curiosity
- Curled hair
- Curliness
- Curling
- Curmurring
- Currant
- Cuscus grass
- Cuscus plant
- Cuscuta reflexa Roxb
- Cuss
- Custard pie
- Custodian