- Cryptonym
- Caesura
- Cafe
- Camellia
- Ception
- Circumambulation
- Coamings
- Comminute
- Cajole
- Cal
- Calabash
- Calamities
- Calamities in rapid sequence
- Calcify
- Calcite
- Calcium carbonate
- Calculated
- Calcutta
- Caldron
- Calendar year
- Caliban
- Calibrate
- Callousness
- Calls distance
- Calluses
- Calm
- Calote
- Calumet
- Calumny
- Calves
- Cam
- Cambric
- Came in view of
- Camouflaged
- Camp
- Camp bed
- Canine tooth
- Cannabis sativa
- Cannikin
- Cannon
- Cannonade
- Cannonball
- Cannot be blamed
- Cannot resist
- Canoe
- Canon law
- Canonist
- Canopied pandal
- Caravanserai
- Carbolic acid
- Carbonize
- Carburetor
- Carcass
- Carcinoma
- Card
- Cardamom seed
- Cardinal virtues
- Cardiogram
- Carol
- Carpel
- Carpenter ant
- Carpet bag
- Carpus
- Carrier
- Carrion crow
- Carry a torch for
- 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
- Catholicism
- Causing to
- Cautery