- Crypto communist
- Crystal
- Crystallize
- Crystals
- Csi
- Cub
- Cubic root
- Cubicle
- Curate
- Curb
- Curcuma amada
- Cure
- Curfew
- Curiosity
- Curled hair
- Curliness
- Curling
- Curmurring
- Currant
- Cuscus grass
- Cuscus plant
- Cuscuta reflexa Roxb
- Cuss
- Custard pie
- Custodian
- Custodianship
- Customarily
- Customer relation
- Customize
- Cut down
- Cut from underground
- Cut glass
- Cyclist
- Cyclone
- Cylindrical
- Cymbals
- Cynophilist
- Cyperus
- Cyperus rotendus
- Cypher
- Cyprinid
- Cystic fibrosis
- Cystitis
- Cytology
- Czar
- C
- Chadors
- Characterised
- Circumcentre
- Coaly
- Cognovit
- Comose
- Conjunctive
- Caiman
- Cairn
- Cajolery
- Cake
- Cakewalk
- Calamity
- Calculable
- Calculate
- Calculated insult
- Calculating
- Calculator
- Calculus
- Calicut
- Californium
- Call a halt
- Call down on
- Call forth
- Call in
- Call-out
- Caller
- Calligraphist
- Calling
- Callipygian
- Callous
- Campari liquor
- Camphor-scented
- Campus
- Campylobacter
- Can
- Canary
- Cancatervate
- Candescence
- Candid
- Capacitate
- Cantilever
- Canvas shoes
- Canvass
- Capability
- Capacious
- Capaciousness
- Capacity
- Cape
- Capitalist
- Capitalization
- Capitalize
- Capitation
- Capitulate