canoe canvas
capitalism cargo
carpenter carpet
cassette casual(adj)→casually(adv)
caterpillar cement
cereal chain
chamber cherish
chest chief → in chief
chimney childish(adj) → childlike(adj)
chop cigarette
circumstance → under no circumstance
citizen civilization
clarify clever
climax clumsy
coarse coconut
colony column
commerce → commerce with
commit →ex:he committed suicide
committee compare with
compliment condition
confine to confess + V-ing/that子句
conflict congress
conscious + of/that子句 consequent on/upon
constitute contract(n) → costract with (v)
convention(n)→coventional(adj) cope with
council course
court crane
cricket crop
crutches cool as a cucumber
cunning current