- Chiefly
- Chiffon
- Childish
- Childrens food
- Childs feeding for the first time
- Chirographic
- Chiropodist
- Chirp
- Chisel
- Chiselled features
- Chitchat
- Chloric acid
- Chlorination
- Chlorosis
- Chmey sparrow
- Choke back
- Chokehold
- Choky
- Christen
- Christian
- Christian theology
- Christian women
- Christmas card
- Christology
- Chromatic
- Chromatically
- Chromite
- Chromo sphere
- Chronic bachelor
- Chronicled
- Chronis
- Chronometer
- Ciborium
- Cicatrice
- Cigar
- Cigarette
- Cilia
- Cinder
- Cinnamomum osmophloeum
- Cinnamon leaf
- Cinnamon tree
- Cipher
- Circa
- Circadian rhythm
- Circuitous
- Circular
- Circulate
- Circulating library
- Circulatory system
- Circumlocutory
- Circumstances
- Circumstantial
- Circumstantial evidence
- Circumventive
- Circumventor
- Cirrhosis
- Cirrus
- Cist
- Cite
- Civilian
- Civility
- Civilize
- Claim
- Claimant
- Clam
- Clandestine
- Clank
- Clapper
- Clapping of hands
- Claymore
- Clean off
- Clean slate
- Clean-cut
- Cleanse
- Clear
- Clear off
- Clear water
- Clew
- Click and drag
- Clicktivism
- Climber
- Clinch
- Clinder
- Cling
- Close ranks
- Close shave
- Close-mouthed
- Closed
- Closed fist
- Closely
- Closely related
- Closeness
- Closet
- Closure motion
- Clothe
- Cloud
- Cloudily
- Cloudiness
- Cloudscape
- Clowder