- Consequently
- Conservancy
- Conserved
- Considerable
- Consignee
- Consisting
- Consolar
- Consonance
- Consultation
- Consultative
- Consume
- Consummating
- Consummation of fast
- Contagious
- Contains
- Contaminating
- Contamination
- Contemnor
- Contingent
- Continually
- Continue
- Continuing
- Continuously
- Contorted
- Contour
- Contra
- Contraband
- Contracting
- Contractor
- Contradictory
- Contrail
- Contraption
- Convalesce
- Convection
- Conventionalist
- Conventionalize
- Conversant
- Conversely
- Convert
- Convey
- Conveyable, conveyance
- Conveyed
- Conveyor
- Convict
- Conviction
- Convincing
- Convivial
- Convoluted
- Convolution
- Convuised
- Convulsion
- Cook the books or accounts
- Cooking
- Cooking rice
- Cooks
- Cool
- Cool fish
- Cool ones heels
- Copse
- Coquetry
- Coquette
- Coral
- Coral reef
- Cordage
- Cordiality
- Coreldraw
- Corporally
- Corporate
- Corps de-ballet
- Corps diplomatique
- Corpuscle
- Corral
- Correct
- Corrected
- Correctitude
- Corrective
- Corroborate
- Corroding
- Cost-effective
- Costive
- Coterie
- Cotton cloth
- Cotton plant
- Cougar
- Coughing
- Could have
- Coulomb
- Council
- Council board
- Council estate
- Council of war
- Counselor
- Count for
- Count in
- Countable
- Counter-allegation
- Counter-attack
- Counter-claim
- Coup
- Coup de foudre