- Canker
- Canned goods
- Cannery
- Cannibalism
- Canny
- Canonistic
- Canons
- Canoodle
- Cantaloupe
- Cantankerousness
- Canteen
- Canter
- Canthus
- Capnocytophaga
- Cappuccino
- Capricious
- Capricorn
- Capricornus
- Caprine
- Caps lock
- Captivates
- Capture
- Captured animal
- Caput
- Car-load
- Cardiology
- Cards
- Career
- Carefree
- Carefully
- Caregiver
- Caress
- Caressing
- Careworn
- Caribou
- Carion
- Carmine
- Carnal
- Carnality
- Carry ones point
- Carry through
- Cartage
- Cartilages
- Cartridge
- Carve
- Carver
- Case aside
- Case book
- Caste system
- Casteless
- Castigatory
- Casting off
- Castle
- Castor
- Castor cake
- Castor sugar
- Castrate
- Castrated bull
- Castrol-oil plant
- Casual
- Casually
- Catechism
- Categorize
- Category
- Catenary
- Cater to
- Caterer
- Caterwaul
- Catnap
- Causing heat
- Causing joy and fear
- Caustic potash
- Caution money
- Cautionary
- Cautiously
- Cavalcade
- Cavalryman
- Cave dweller
- Cave painting
- Caveat
- Cavort
- Cavum
- Celluloid
- Celt
- Celtic
- Cenacle
- Cenotaph
- Centaurus
- Centenary
- Centennial
- Center
- Centipede
- Central
- Centralisation of powers
- Certification
- Certifier
- Certitude
- Cesarean
- Cesspit
- Cetacean