- child safety lock
- chip
- chirpy
- chitty foreman
- chivalrous
- choral, chorale
- chore
- chorography
- chorus
- christ like
- christian theology
- christianise
- christmas
- christmas card
- churn something out
- chute
- chyme
- cinch
- circumcised
- circumference
- circumlocution
- circumvent
- circumventor
- clamp down on
- clancining
- clang
- clapping of hands
- claque
- clawback
- clay
- clear
- cleopatra ramases akhnaton tuthankhaman
- click
- click and drag
- climate
- clippers
- clitoris
- clock
- closet genius
- closing date
- cml
- co-student
- coachman
- coal bed
- coalface
- coalgate
- coenzyme
- coercion
- coffin
- coincidence
- cold
- cold comfort
- cold cream
- cold cuts
- cold storage
- cold war
- cold-hearted
- collective
- collegiate
- collision
- collogue
- comb
- combine
- come
- come clean
- come to someone's rescue assist
- common qualities
- companionable
- comparable
- compatibility
- complaint
- complex
- complicated
- culler
- comprise
- computer graphics
- computerised
- concentration
- concerned about
- concert
- concerted
- conch shell
- conchology
- condemnation
- condemned cell
- condense
- condiions
- confess
- confidence
- configuration
- confine
- confirmed
- connoisseur
- conscience
- conscience-stricken
- consciousness
- conscription
- constructivism
- consuetude
- consummate trickster