- conditional
- confidence trick
- cong
- commute
- commuter
- composition-book
- conjure
- conn
- conniption
- considerable
- conductor
- continent
- contact
- continental
- contour-fighter
- cook-stove
- cooler
- convert
- coop
- coot
- copy-reader
- contour
- contrary
- converter
- cony
- cook-book
- cookout
- cook-room
- cookie
- corduroy
- corn
- corn-field
- corn-flour
- corpsman
- corral
- corsage
- coulee
- counsellor
- counter-pressure
- counting-room
- country club
- covert
- cow-hide
- cow-puncher
- cowman
- could
- councilman
- crab-pot
- crack
- cracker
- crackjack
- cranky
- crawl
- creamer
- cow
- cow-catcher
- coy
- crankiness
- craps
- crash
- crash-proof
- crawfish
- cream separator
- credibility
- credibleness
- creek
- creeper
- crib
- crimp
- crisp
- croak
- crook
- crystal
- crowd
- crown
- crux
- cuff
- cult
- croaker
- crosswalk
- crow
- crowded
- cuspidor
- cuss
- cussed
- cussedness
- custom
- cut
- cut-off
- cute
- cruller
- cub
- cunning
- cutup
- cycler
- cyder
- d-ration
- daffy
- dago
- darning-needle