- clearing
- contented
- coliseum
- chewing gum
- conservatoire
- clarified butter
- citify
- curdled
- centralization
- consign
- commend
- cited
- coherency
- copyreader
- casting vote
- corker
- consummation
- chunking
- carburetor
- compressor
- copyholder
- corvee
- conveniently
- contrition
- cleverness
- cellist
- clapping
- catheter
- contraindication
- come what may
- cullender
- crosscheck
- continence
- clear off
- checkup
- comeuppance
- convertibility
- chartered accountant
- chop up
- come to terms
- cough drop
- chronoscope
- cowbell
- clevis
- cicatrize
- colonized
- curing
- circumvolution
- coaling station
- coalescency