- Caw
- Celsius
- Cement
- Cementation
- Cenobite
- Cenosity
- Censorious
- Censorship
- Censuring
- Census
- Cent
- Centage
- Centenarian
- Centigrade
- Centigram
- Centilitre
- Cerulean
- Cervix
- Cess
- Cfd
- Chaff
- Chain reaction
- Chair
- Chaise
- Chandlery
- Change gears
- Change of scenery
- Changeable
- Changed
- Changes
- Changing hands
- Channelize
- Chanticleer
- Chap
- Chap book
- Cheap and nasty
- Cheap jack
- Cheat
- Cheat sheet
- Cheater
- Check by jowl
- Check dam
- Check out
- Cheek
- Cheek cancer
- Cheeky
- Cheerfully
- Cherry picking
- Chest of drawers
- Chestnut
- Chettuva
- Chetty community
- Circumambient
- Chevalier
- Chew the cud
- Chiaroscuro
- Chirography
- Chiromancy
- Chirpy
- Choose
- Chivalrous person
- Chive
- Chloric
- Chlorine
- Chlorophyll
- Chloroplast
- Chocked with emotions
- Chocolate
- Choir
- Choke down
- Chokes
- Christmas
- Chrome
- Chromium
- Chronic eczema
- Chronicle
- Chronicler
- Chronology
- Cicartix
- Cicatrize
- Cicer arictinum
- Cider
- Cinchona
- Cinematograph
- Cinerama
- Cineraria
- Cinnamon
- Cinnamon powder
- Cir
- Circe
- Citified
- Citizen
- Citrus
- City-gate
- Civet cat
- Civet-musk
- Civic
- Civics
- Civil behaviour
- Civil defence