- Curly
- Curmudgeon
- Currency note
- Current password
- Cursor
- Curtal
- Curtsey
- Curtsy
- Curved knife
- Cut price
- Cut the gordian knot
- Cutler
- Cutter
- Cutting off
- Cyanide
- Cyberstalking
- Cycle
- Cyclical
- Chivalrous
- Conjunctivitis
- Conjuncture
- Cotillion
- Cozenage
- Cabinet
- Cabman
- Cackling
- Cadaverous
- Cadenced
- Cadge
- Cagamosis
- Cagy
- Cai
- Cail
- Callously
- Callow
- Calorescence
- Calorie
- Caltrop
- Calumniate
- Calve
- Calx of brass
- Calyx
- Camaraderie
- Came
- Camel
- Camera
- Cantilever
- Canvas shoes
- Canvass
- Capability
- Capacious
- Capaciousness
- Capacity
- Cape
- Capitalist
- Capitalization
- Capitalize
- Capitation
- Capitulate
- Capitulation
- Carassing
- Caravan
- Carboniferous
- Cardamom tea
- Cardboard
- Cardinal
- Cardiograph
- Carouse
- Carpe diem
- Carpenter
- Carpenter's
- Carpet weaver
- Carpets
- Carpool
- Carriagable
- Cartoon
- Carriage paid
- Carrot and stick policy
- Carry it off well
- Carry all before
- Carry away
- Carry back
- 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