- capillary
- cyborg
- citrine
- correspond with
- cut a figure
- counter plea
- chandler
- collective noun
- colour blind
- chief guard
- come into line
- commodify
- curing house
- chin
- chivy
- cleft palate
- chromite
- co-education
- choral
- carpool
- come under
- crossbar
- crystallisation
- crore
- classical antiquity
- come to the point
- coiner
- che guvera
- cunningly silent person
- cross-face
- crown wheel
- clan-chief
- chirographic
- chemical inputs
- commodore
- crom
- crabber
- child labour
- crochet-work
- cataplexy
- continental drift
- citronella
- col
- come to aid
- cabby
- cabin cruiser
- cable
- cagamosis
- cagy
- cahoots in cahoots
- cai
- cain
- caladium
- calcify
- calcium carbonate
- call in question
- call names
- call of prayer
- call someone up
- call something off
- call to action
- calumny
- came
- came in to view
- camera
- campaign
- candid
- cane
- cannery
- cannibal
- cannonball
- canvasser
- cap
- capable
- capacitor
- capital idea
- capital outlay
- capitalism
- capitalist
- captious
- caravan
- caraway
- care
- careerist
- careful
- caretaker
- careya arborea
- carfax
- carpet bag
- carrot and stick policy
- carry it off well
- carry back
- cast
- cast a pall over
- castor oil
- castrate
- cat fish
- cataclism
- catch fire
- catch one red-handed