- Convolution
- Convuised
- Convulsion
- Cook the books or accounts
- Cooking
- Cooking rice
- Cooks
- Cool
- Cool fish
- Cool ones heels
- Cormorant
- Cornfield
- Cornstarch
- Corny
- Coronal
- Coronary
- Coroner
- Corruptible
- Corrupting
- Cortex
- Cosmetics
- Cosmic
- Cosmogonist
- Cosmolatry
- Cosmonautics
- Cosmos
- Cost accountant
- Council
- Council board
- Council estate
- Council of war
- Counselor
- Count for
- Count in
- Countable
- Counter-allegation
- Counter-attack
- Counter-claim
- Coup
- Coup de foudre
- Coupling
- Courage
- Courageous
- Courier
- Court
- Court-martial
- Courtesan
- Courtier
- Cousin
- Covenant
- Cover
- Crag
- Crake
- Cram full
- Crammed
- Cramped
- Crams
- Crate
- Crater
- Cravat
- Craven
- Crawler
- Crawling
- Crayfish
- Crayon
- Creepy
- Cremation ground
- Crematorium
- Cremulator
- Crepuscular
- Crescendo
- Crest-jewel
- Crestfallen
- Crib
- Cricketer
- Crime
- Crime sheet
- Criminal code
- Criminal jurisprudence
- Cross-eyed
- Cross-fertilize
- Crumple
- Cross-question
- Crossbenches
- Crossbones
- Crossfire
- Crossing bounds
- Crossly
- Crossroads
- Crossway
- Crosswind
- Crosswise throw
- Crossword
- Crotchety
- Crouched
- Cruelty
- Crummy
- Crumpling dry leaves
- Crumps
- Crunch