- Clasp
- Classical music
- Classical work
- Classify
- Classifying
- Classless
- Classmate
- Classy
- Clavichord
- Cmc
- Cliche
- Cliche-ridden
- Cliched
- Click
- Client
- Cliff-hanger
- Climatic
- Climatics
- Climax
- Climb
- Climbable
- Climbing
- Cline
- Clinic
- Clinical thermometer
- Close up
- Close-set
- Closing date
- Clot buster
- Cloth
- Cloth for onam
- Co-action
- Co-brother
- Co-brother-in-law
- Co-extensive
- Co-habiting
- Co-student
- Coadjutant
- Coal field
- Coal-black
- Coalesce
- Cock of the walk
- Cock-up
- Cockroach
- Coconut husk
- Coconut scrapes
- Cocoon
- Cod fish
- Codasyl
- Code of conduct
- Codec
- Cognoscenti
- Cohere
- Cohesive
- Cohesiveness
- Coiffeur
- Coincident
- Coincidentally
- Coir carpet
- Coition
- Coke
- Cola
- Cold season
- Cold shoulder
- Cold sore
- Coldly
- Coldness
- Colic
- Collaborator
- Collagen
- Collateral
- Collect
- Collectable
- Colonel
- Coloration
- Colorless
- Colour
- Colouration
- Coloured
- Colourful
- Colourless
- Colporteur
- Colubrine
- Columnist
- Come into
- Come into power
- Come of
- Come of well
- Come out of ones shell
- Come short of
- Come to ahead
- Comity of nations
- Comletion
- Comma
- Commanding
- Commandment
- Commenced
- Commensalism
- Comment
- Commiserate