- conspire
- constant
- constraint
- constructive
- constructive thinking
- consult
- contact lens
- continuous
- contra
- contraband
- contractile vacuole
- contraction
- contracture
- contradiction
- contraindication
- conversation
- converse
- conversion
- convict
- convincing
- convining
- cooking pot
- cooking vessel
- cool wind
- coolant
- cooper
- cooperative
- cormorant person
- corn heap
- coromandal coast
- coronary arteries
- coronary artery
- coroner
- cottager
- cotter
- cotton cloth
- cough
- cough something up
- counselled
- counterpart
- country club
- country folk
- coup
- cow sacrifice
- cow-elephant
- cowardice
- cowpea pods
- craetava religiosia
- craftsmanship
- crag
- crake
- cram
- cramp
- cramped
- cranberry
- crank something up
- creative
- crest-jewel
- credential
- credulous
- criterion
- critical decision
- criticise
- crock up
- crony
- crook
- cross-hands
- cross-polination
- crossbenches
- crossfire
- crosswind
- crosswise, crossways
- crowded
- crowded market
- crumple
- crusade
- crusader
- crushed state
- crust
- cry for the moon
- cry foul
- culttered
- cultural village
- cultured person
- cumulative
- cuniform writing
- cunnilingus
- cupidity
- cur
- currency
- cursory
- curtain
- curtal
- curtsey
- curved line
- cuscus grass
- custodian
- custody
- custom
- customarily