- cold water
- collision course
- colonel
- colonitis
- combatant
- combative
- combustible
- come about
- come down on one side of the fence or other
- commend
- commentary
- commerce
- commercialized
- communicative
- communion
- communise
- communist army
- commutator
- commute
- comorbid
- concession
- concession speech
- conch
- conch with spiral
- concuss
- condemn to
- condemnatory
- condensation
- conditional probability
- confide
- confined
- confines
- confirm
- congestion
- conglutinate
- congratulate oneself
- congress
- conic
- conqueror
- conquetish
- conscript
- consecrated water
- consignor
- consistent
- consolation prize
- consort
- conspiracy
- consultation
- consulting physician
- consumable, consumer
- consume
- consumer
- consumer goods
- consuming
- consummately, consummation
- contention
- contentious
- contentment
- context
- contiguously, contiguity
- contingent
- continual
- contrarian
- contravention
- contribution
- contrive
- conversational
- coral reef
- coral tree
- coriander powder
- corpse
- correspondence
- correspondent
- corridor
- cosmolatry
- cost accountant
- costume designer
- coterminus
- cotillion
- cotillon
- cottage
- counterculture
- countermand
- courtesan
- covey
- cow lick
- cowardly
- cowboy
- cows milk
- craft
- craftmanship
- crafty
- craggy
- crank
- created
- creating
- creation
- credit
- criminal jurisprudence
- cross road