- Cyclical
- Cryptonym
- Caesura
- Cafe
- Camellia
- Ception
- Circumambulation
- Coamings
- Comminute
- Cabby
- Cajole
- Cal
- Calabash
- Calamities
- Calamities in rapid sequence
- Calcify
- Calcite
- Calcium carbonate
- Calculated
- Calcutta
- Caldron
- Calendar year
- Caliban
- Calibrate
- Calk
- Call at
- Call attention to
- Call back
- Call by
- Call centre
- Call in question
- Call names
- Call to action
- Call to bar
- Call upon
- Campaigner
- Campanology
- Camwhore
- Can of worms
- Canalize
- Canard
- Cancerous
- Candicamera
- Candidates
- Candle
- Candy
- Cane chair
- Cantillate
- Cantonment
- Canvas
- Cap-a-pie
- Capacity crowd
- Caper
- Capital
- Capital expenditure
- Capital idea
- Cardiomyopathy
- Care about
- Care of
- Careen
- Career woman
- Carefrontation
- Careful
- Caretaker
- Carfax
- Caricature
- Carnatic music
- Carnation
- Carnivore
- Carry forward
- Carry over
- Carry the day
- Cart off
- Cart-man
- Cartoonist
- Cartwheel
- Carved
- Caster
- Castes
- Castigation, castigator
- Casting
- Casting vote
- Castle in the air
- Castor oil
- Castration
- Casual leave
- Casualness
- Catch napping
- Catchment area
- Catechist
- Categorically
- Cater
- Catering
- Caterpillar
- Catharsis
- Cathartic
- Catherine-wheel
- Catheter
- Cathode
- Cathode-rays