- Classmate
- Classy
- Clavichord
- Cmc
- Clearance
- Clearing house
- Cleave
- Clef
- Cleft palate
- Clematis
- Clerical
- Clerk
- Clever fellow
- Clever man
- Cleverish
- Cleverly
- Clinker
- Clinquant
- Clipboard
- Clique
- Cliquish
- Clitic
- clitoridectomy
- Clitoris
- Clock
- Clockwise
- Clog
- Clogging
- Clone
- Clonk
- Close
- Close in
- Cloudburst
- Cloudy
- Cloudy sky
- Clough
- Cloy
- Clue
- Clumpy
- Clunk
- Cluster of lotus flower
- Cluster of desoms
- Clutch
- Clutter up
- Clyster
- Coalmine
- Coarse sand
- Coarsen
- Coarseness
- Coast of coromandal
- Coastal
- Coaster
- Coastline
- Cobbler-smith
- Coca cola
- Coccinia grandis
- Coccyx
- Cochin
- Cock crow
- 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
- Collection
- Collective bargaining
- Collectivism
- Collector
- Collectorate
- Collegiate
- Collier
- Collimate
- Collogue
- Colloquium
- Colluctation
- Collude
- Collusion
- Colombo
- Coma
- Comaberenices
- Combo
- Combustion
- Come after