- cede
- ceded
- cell
- celled
- cello
- clod
- clone
- cloned
- clown
- clowned
- cocoon
- cocooned
- coddle
- coddled
- code
- coded
- codon
- coed
- cold
- colleen
- colon
- colonel
- concede
- conceded
- condo
- condolence
- condone
- condoned
- cone
- coned
- conned
- cooed
- cool
- cooldown
- cooled
- cowed
- cowl
- deco
- decode
- decoded
- encode
- encoded
- loco
- locoweed
- neocon
- nonce
- once