- 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
- Circling
- Circumcise
- Circumfluence
- Circumnavigation
- Circumpolar
- Circumscribe
- Circumstance
- Circumvent
- Circumvention
- Circus
- Cisc
- Cissuspedafa
- Cistern
- Citadel
- Citation
- Civilisation
- Clabber
- Clack
- Cladding
- Clairvoyance
- Clairvoyant
- Clamant
- Clamber
- Clamorous
- Clamp
- Clamp down
- Clan
- Clan-chief
- Clancining
- Clangourous
- Clap
- Claptrap
- Clay modelling
- Clean
- Clean out
- Cleaner
- Cleaning
- Cleansed
- Clear away
- Clear data
- Clear out
- Clear the place
- Clear the way
- Clear up
- Clientele
- Cliffhanging
- Climactic
- Climate
- Climate change
- Climatology
- Climbing hoop
- Clime
- Climp up
- Clinging steadfast
- Clinging to
- Clingy
- Clinical
- Clip-art
- Clip-on
- Clobber
- Clogged
- Cloistered
- Close associate
- Close cropped
- Close friend
- Close investigation
- Close over
- Clouded
- Cloudless
- Clout