- Choreograph
- Chorion
- Chorography
- Chorology
- Chorus
- Chosen
- Chow
- Chrysalis
- Chthonic
- Chuckle
- Chugger
- Chum up
- Chunnam
- Churn-staff
- Churn-stick
- Chute
- Chutney
- Circling
- Circumcise
- Circumfluence
- Circumnavigation
- Circumpolar
- Circumscribe
- Circumstance
- Circumvent
- Circumvention
- Circus
- Cisc
- Cissuspedafa
- Cistern
- Citadel
- Citation
- Civilisation
- Clabber
- Clack
- Cladding
- Clairvoyance
- Clairvoyant
- Clamant
- Clamber
- Clamorous
- Clamp
- Clamp down
- Clan
- Clan-chief
- Clancining
- Clangourous
- Clap
- Claptrap
- Clay modelling
- Clean
- Clean out
- Cleaner
- Cleaning
- Cleansed
- Clear away
- Clear data
- Clear out
- Clear the place
- Clear the way
- Clear up
- Clientele
- Cliffhanging
- Climactic
- Climate
- Climate change
- Climatology
- Climbing hoop
- Clime
- Climp up
- Clinging steadfast
- Clinging to
- Clingy
- Clinical
- Close rank
- Close round
- Close to
- Close-fitting
- Closed place
- Closefisted
- Closely built
- Closet genius
- Closing as flowers
- Clot
- Cloth purse
- Clothline
- Cncoction
- Co-axial
- Coarse
- Co-factor
- Co-operator
- Co-sister
- Coachman
- Coagulant
- Coal bed
- Coal tar
- Cock fighting
- Cock-eyed
- Cockade
- Cockle shell