- clear water
- corrodent
- crabber
- combine
- cleat
- cleaver
- cleopatra ramases akhnaton tuthankhaman
- child labour
- crochet-work
- come
- click
- click and drag
- chillum
- climate
- climb
- cataplexy
- continental drift
- clinical thermometer
- citronella
- clip
- clip someone's wings
- clip-art
- clippers
- come to aid
- cabby
- clitoris
- clock
- conveyable
- cabin cruiser
- come into power
- cheerio
- coon
- cable
- collate
- condemnation
- collar beam
- cackle
- comedown
- cacophony
- chew
- closet genius
- cadastre
- closing date
- cadaver
- cadaverous
- cross-examine
- chew the fat, chew the rag
- collision
- cloven
- cadet corps
- cadillac
- clump
- cml
- co-student
- coachman
- coal bed
- cagamosis
- coalface
- coalgate
- coalite
- coalition
- coarse
- coarse sand
- coarticulation
- cai
- chime in
- coca cola
- cock fighting
- colleague
- cockroach
- coconut milk
- coddle
- code of conduct
- caladium
- countryman, countrywoman
- coenzyme
- calcify
- coercion
- coffin
- cognizant
- cognoscente
- church
- calculated insult
- coincidence
- calculating
- cold
- cold comfort
- cold cream
- cold cuts
- cold storage
- cold war
- cold-hearted
- comfort
- commiserate
- cole
- circuit
- caliban
- coupon
- collaborator
- captagon