- Court
- Court-martial
- Courtesan
- Courtier
- Cousin
- Covenant
- Cover
- 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
- Criminality
- Criminologist
- Crinkum-crankum
- Crippling
- Crisis
- Crispy
- Criterion
- Critical
- Critical spirit
- Critical stage in small-pox
- Croak
- Crocus
- Cross-eyed
- Cross-fertilize
- Crumple
- Cross-question
- Crossbenches
- Crossbones
- Crossfire
- Crossing bounds
- Crossly
- Crossroads
- Crossway
- Crosswind
- Crosswise throw
- Crossword
- Crotchety
- Crouched
- Crying
- Crypto
- Crypto communist
- Crystal
- Crystallize
- Crystals
- Csi
- Cub
- Cubic root
- Cubicle
- Cultural
- Culture
- Cultured
- Cultured person
- Cumin
- Cumin seed
- Cumminseed
- Cumulative
- Cuneiform
- Cuniform writing
- Cunning fellow
- Cunningness
- Cupboard love
- Cutlet
- Cuppa
- Currently
- Curricle
- Curriculum
- Currier
- Curry-leaf tree
- Cursing
- Cursive
- Cursoriness
- Curt
- Curtail
- Curtly
- Curvaceous
- Curvature
- Cut ones own throat
- Cut out the middleman
- Cut short
- Cutie
- Cutlery
- Cutters