- come to someone's rescue assist
- closely built
- close round
- cystitis
- comical
- coming down
- climactic
- comma
- commandant
- clever man
- cultivator
- commemorate
- cleromancy
- clepsyddra
- commensurable
- commensurable ness
- cleanness
- commiserate
- commiseration
- commissariat
- clean-handed
- common qualities
- clean someone out
- claviger
- claptrap
- clap of thunder
- companionable
- comparable
- clap eyes on, lay eyes on, set eyes on
- compatibility
- compelling
- compensate
- cult figure
- complain
- complaint
- clap
- complex
- complicated
- culler
- culprit
- clank
- clanger
- cuisenaire
- comprise
- cuddle
- computer graphics
- computerised
- clamour
- concentration
- concerned about
- cucumber
- concert
- concerted
- conch shell
- conchology
- cuckoldress
- clamor
- clamber
- concord
- clamant
- condone
- conduce
- circular
- conduit
- confederation
- confer
- confess
- confidence
- cinnamomum osmophloeum
- cinematograph
- cry foul
- cry for the moon
- configuration
- confine
- confirmed
- chugger
- congratulations
- chromatically
- coniferous
- cullet
- conjectural
- connoisseur
- conscience
- conscience-stricken
- consciousness
- conscription
- chloroform
- consolation
- console
- consolidate
- chivalrous person
- chirality
- conspicuous
- chef-d'oeuvre
- containment
- cyst
- crust
- contemporaneouness
- cheery
- check-up