- Catalyst
- Catalytic
- Cataplexy
- Cataract
- Catch a chill
- Catch a few rays
- Catch able
- Catch at a straw
- Caul
- Causality
- Cause
- Causing fear
- Cdc
- Cedar
- Cedar tree
- Cede
- Cedent
- Ceiling fan
- Celebrated
- Celerations
- Celibate
- Cell
- Cell a spade a spade
- Cellular
- 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
- Charity
- Charm
- Charmingly
- Charnel house
- Chart
- Chasm
- Chaste woman
- Chasten
- Chastity
- Chattel
- Chatter
- Chatter box
- Cherry picking
- Chest of drawers
- Chestnut
- Chettuva
- Chetty community
- Circumambient
- Chevalier
- Chew the cud
- Chiaroscuro
- Childs play
- Chiliad
- Chillingly
- Chime
- Chimney
- China clay
- China-ware
- Chine
- Chinless
- Chinned
- Chip
- Chipotle
- Chipper
- Chirality
- Chirk
- Christmas
- Chrome
- Chromium
- Chronic eczema
- Chronicle
- Chronicler
- Chronology
- Circling
- Circumcise
- Circumfluence
- Circumnavigation
- Circumpolar
- Circumscribe
- Circumstance
- Circumvent
- Circumvention
- Circus
- Cisc
- Cissuspedafa
- Cistern
- Citadel