- Corselet
- Coruscation
- Coryza
- Cosmetic preparation
- Cosmogonal suktha
- Cosmography
- Cosmological
- Cosmology
- Coumarone
- Counseller
- Counselling
- Countdown
- Counter plea
- Counter-acting
- Coup de grace
- Couple
- Courses
- Court of law
- Courtesies
- Courtliness
- Courtly
- Cowl
- Cowpea pods
- Cows
- Coxswain
- Coy
- Crab
- Crabber
- Crack a joke
- Crack brained
- Cracked
- Cracking sound
- Craftiness
- Craftsman
- Cram
- Cramp
- Crampon
- Crankily
- Cranny
- Crap
- Crape
- Crash
- Crash helmet
- Crave
- Craving
- Crawlingly
- Creeper
- Creepers
- Cremation
- Creme
- Creole
- Crepe
- Crept
- Crest
- Cretin
- Crevasse
- Crevice
- Criminal
- Criminalist
- Croft
- Crom
- Crookedness
- Croon
- Crooner
- Crop
- Cropper
- Croquet
- Crores
- Cross armed
- Cross contamination
- Cross purpose
- Cross-country
- Cross-cultural
- Crown princess
- Crowned
- Crucible
- Crucifixion
- Cruciform
- Crude
- Cruelly
- Cruise missile
- Cruiser
- Crumbling
- Crump
- Crumpet
- Crushed
- Crust
- Crustacean
- Crutch
- Cry
- Cry blue murder
- Cry down
- Cuckoldry
- Cucumber plant
- Cues
- Cuff
- Cuirass
- Cuisenaire
- Cul-de-sac
- Culler