- contextualise
- contingency
- continuance
- continuation
- contrary
- contributor
- controlled passions
- convert
- convertibility
- conviction
- convince
- conviviality
- convoke
- convolution
- convulsive
- cook the books or accounts
- coparcenor
- coral island
- cordite
- coreldraw
- coriander leaves
- cork
- cormorant
- cornal desire
- corner
- cornflower
- cornstarch
- coronet
- corporal
- corrective
- corresponding
- cosmonautics
- cosmopolite
- cost-benefit
- cot with coir matting
- counter plot
- counter-intelligence
- counter-tenor
- counterfeit
- counterintuitive
- counterpoint
- country dance
- country-boat
- country-made
- county council
- county court
- coup d'etat
- courtship
- courtyard
- covenant
- covert room
- cox
- cozenger
- crabby
- crack down on
- cracked
- cracking sound
- cracking the point of fingers
- crammer
- crane
- cranium
- creational
- credibility
- credibly
- crime passionnel
- crime sheet
- criminalist
- criminologist
- criminology
- cripple
- crippled
- crises
- crisp
- critic
- crje
- crock
- croissant
- crony capitalism
- crooked
- cross-grained
- cross-ply
- crossover
- crosswise throw
- crossword
- crotchet
- croupier
- crowd out
- crown princess
- crumps
- cry blue murder
- cry off
- cry one's heart or eyes out
- cue
- cuff
- cuisine
- cultivate
- cultivated land
- curfew
- curio
- curious