- Corn-cob
- Cornice
- Coromandal coast
- Coronary arteries
- Corps
- Corpse
- Corpulence
- Corpulency
- Corpulent
- Corpulent person
- Correspond
- Correspondence
- Corridor
- Corroborant
- Corrodible
- Corrody
- Corrosion
- Corrugated iron
- Corsair
- Coruscate
- Corvette
- Cosmetic
- Cosmic rays
- Cosmogony
- Cosmopolitan
- Cosmopolite
- Cosset
- Cost
- Cost of living
- Croaky
- Cosumed
- Cot with coir matting
- Cote
- Cotton
- Cotton cake
- Cotton on to
- Cotton wool
- Couch potato
- Cough
- Council-chamber
- Counsel
- Counselled
- Count noses
- Countenance
- Counter
- Counter band goods
- Counter charge
- Counter check
- Counter march
- Counter-attraction
- Counter-temps
- Counterbalance
- Countess
- Country-greens
- County court
- County town
- Coupe
- Coupe de etat
- Couplate
- Coupon
- Courageously
- Course
- Courser
- Court fool
- Courteous
- Courtesy
- Courtship
- Courtyard
- Cove
- Cover up
- Cover-cloth bed
- Covered
- Covering letter
- Covert room
- Covertly
- Covet
- Covetable
- Covey
- Cow-elephant
- Cow-herd's
- Cow-pat
- Cowed
- Cower
- Cowhouse
- Cowling
- Cowpie
- Cowrie
- Cows urine
- Cowslip
- Cox
- Coz
- Cozen
- Cracker
- Crackle
- Cracksman
- Crafty
- Crane
- Cranefly
- Cranium
- Crash landing