- Calorimeter
- Calory
- Came in to view
- Cameleer
- Case study
- Cashew tree
- Casque
- Casserole
- Cast
- Casuistry
- Cat
- Cat and dog life
- Cat out of the bag
- Cataclism
- Catalyst
- Catalytic
- Cataplexy
- Cataract
- Catch a chill
- Catch a few rays
- Catch able
- Catch at a straw
- Caul
- Causality
- Cause
- Causing fear
- 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
- Charity
- Charm
- Charmingly
- Charnel house
- Chart
- Chasm
- Chaste woman
- Chasten
- Chastity
- Chattel
- Chatter
- Chatter box
- Cheerless
- Cheerly
- Cheery
- Cheese
- Chef
- Chemical engineer
- Cigarrette
- Chemically
- Chemist
- Chemosynthesis
- Chemotherapy
- Chequered career
- Chera king
- Chera ruler
- Chirm
- Cherry picking
- Chest of drawers
- Chestnut
- Chettuva
- Chetty community
- Circumambient
- Chevalier
- Chew the cud
- Chiaroscuro
- Chirography
- Chiromancy
- Chirpy
- Choose