- colossal
- colour fatigue
- chroma sampling structure
- chromatogram
- colour balance
- constricted
- concept
- chasm
- cavitation
- concluding chapter (of a book)
- clove (of a garlic)
- cleft
- centroid
- ceiling
- constituent part
- cooking
- co_share (in landed property)
- crack
- change or variation (for the worse)
- caricature
- conversion
- changed
- cracking sound
- case_to_infection ratio
- case_fatality proportion
- cutting off
- cheek arch
- cheek to
- cleft sternum
- committal to memory
- coding sheet
- coding decoding technique
- coding scheme
- coding check
- coding form
- cryptography
- cryptologic
- cryptographical
- cryptogenic infection
- criticising
- criticism
- calling
- curriculum vitae
- commentary-esp. on a sutra
- concentrational exercise
- cursive
- continuity check
- continuity army council
- continuing trespass
- continuity knob