- counter check
- counter plot
- counter-intelligence
- counter-tenor
- counterfeit
- counterintuitive
- counterpoint
- country dance
- country-boat
- country-made
- county council
- county court
- coup d'etat
- coup de theatre
- courage
- courser
- courtship
- courtyard
- covenant
- covert room
- cow-dung
- cowhide
- cowpie
- cows urine
- cox
- cozenger
- crabby
- crack down on
- cracked
- cracking sound
- cracking the point of fingers
- crammer
- crane
- cranium
- crash landing
- crayfish
- creaking noise
- creational
- credibility
- credibly
- creepy
- crematory
- crenellated
- creosote
- cricket
- cricketer
- crime passionnel
- crime sheet
- criminalist
- criminologist
- criminology
- cripple
- crippled
- crises
- crisp
- critic
- crje
- crock
- croissant
- crony capitalism
- crooked
- croquet
- cross one's mind
- cross something out
- cross voting
- cross-border
- cross-check
- cross-country
- cross-grained
- cross-ply
- crossover
- crosswise throw
- crossword
- crotchet
- croupier
- crowd out
- crown princess
- crucified
- cruel woman
- cruft
- cruiser
- crumps
- cry blue murder
- cry off
- cry one's heart or eyes out
- clever
- client
- clobber
- close
- close down
- cloy
- club
- clutch
- coach
- cock
- come apart
- colourful
- come on
- come in
- come into