- Clarinettist
- Class
- Classicist
- Classics
- Classification
- Clear-cut
- Clearing
- Clearing station
- Cleat
- Cleavable
- Cleavage
- Cleaving to
- Cleft
- Clemency
- Clepsydra
- Clergy
- Clergyman
- Cleric
- Clerodenron syphananthus
- Clever
- Clip-art
- Clip-on
- Clobber
- Clogged
- Cloistered
- Close associate
- Close cropped
- Close friend
- Close investigation
- Close over
- Clouded
- Cloudless
- Clout
- Clouted
- Clover
- Cloverleaf
- Clumsiness
- Clung
- Clunky
- Cluster
- Clustered
- Clutches
- Cncoction
- Co-axial
- Coarse
- Co-factor
- Co-operator
- Co-sister
- Coachman
- Coagulant
- Coal bed
- Coal tar
- Cock fighting
- Cock-eyed
- Cockade
- Cockle shell
- Cockney
- Cockpit
- Coconut inflorescence
- Coconut milk
- Coconut tree
- Cocoonery
- Coda
- Coif
- Coiled
- Coir-mats
- Cold chisel
- Cold cream
- Cold feet
- Cold frame
- Collective farm
- Collectivist
- Colleen
- Collieries
- Colliery
- Collocate
- Collocation
- Colloquial
- Colloquialism
- Colonisation
- Colonise
- Colonist
- Colonnade
- Coloquial
- Color
- Coloring
- Colossus
- Colour blind
- Colour brine
- Colour line
- Colourfully
- Come in
- Come in for
- Come into line
- Come into ones mind
- Come into or enter ones head
- Come near
- Come off
- Come out of
- Come rain , come shine