- compensatory afforestation
- confiscate
- conflicting
- compensation
- comorbid
- commute
- commutator
- confutation
- confute
- congenial
- communist army
- conjunctivits
- communise
- communion
- communicative
- connective
- connivance
- commercialized
- consolation
- console
- consolidate
- commerce
- commentary
- commend
- comfortable
- conspicuous
- comely
- constructivism
- consuetude
- crosswind
- consummate trickster
- consummating
- consumptive
- copulation
- copy left
- coracle
- comedienne
- cordial one
- coriander
- come down on one side of the fence or other
- corporate
- corporation
- corps de-ballet
- corpulent person
- come about
- combustible
- combative
- combatant
- coup de grace
- couplate
- coupon
- courageous
- courgette
- courier
- course
- colonitis
- colonel
- collision course
- column
- covetous
- coil
- cow pox
- cow-dung beetle
- cow-herd-woman
- cow-herd's
- cowdung cake
- cohabit
- cowl
- cognovit
- cradle
- craftsman, craftswoman
- cognate
- coddiwomple
- coconut toddy
- cocky
- crampon
- cranefly
- cockernony
- creamery
- crease
- create
- creativity
- creator
- creature
- creature neither male or female
- creditor
- coal gas
- creek
- criminal code
- crimped
- cringe
- crinkum-crankum
- coagulant
- crisis
- coadjutor
- critical spirit
- criticism
- co-owner
- critique
- clyster