- copper sulphate
- candela
- columbium
- colloid
- catchy
- copper nose
- chaulmoogra oil
- choke
- coalesce
- cease
- cast
- crib
- creditor
- comforter
- card index
- conference room
- compass saw
- clog
- curmudgeon
- consecutive
- conglomerate
- cargo ship
- colour wash
- chemical
- coffee filter
- crotchety
- catastrophe
- chance
- clouding
- calcification
- coup
- communalism
- consignee
- counting
- coexist
- chemoreceptor
- cardiac murmur
- cicatrice
- cardiomegaly
- clubbing
- collocate
- captaincy
- chairmanship
- craw
- cultivated plant
- Cannabis indica
- classifier
- cheapen
- countervail
- capital gains