- Caitiff
- Caladium
- Calamitous
- Calcinations
- Calculation
- Caledenian
- Calender
- Calf
- Calf love
- Calibration
- Capable
- Capable man
- Capable of
- Capacitor
- Capacity building
- Caparisoned
- Capillary
- Capital outlay
- Capital punishment
- Capitalism
- Capitol
- Carapace
- Carat
- Caraway seeds
- Carbine
- Carbon copy
- Carbon-dio-oxide
- Carbonate
- Carbuncle
- Carcase
- Carcinogenic
- Cardamom
- Cardiac
- Cardiac arrest
- Cardinalship
- Cardiologist
- Carpentry
- Carpet
- Carpeting
- Carping
- Carried
- Carrion
- Carry
- Case study
- Cashew tree
- Casque
- Casserole
- Cast
- Catch phrase
- Catching
- Catchments area
- Catchy
- Cbc
- Categorise
- Cathedral
- Catholic
- Causing pain
- Causing to shine
- Caustic
- Causticity
- Cauterisation
- Cauterise
- Caution
- Cautious
- Cavalier
- Cavalry officer
- Cave
- Cave in
- Caveman
- Cavil
- Cavity
- 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