/ Dictionary / Index C CTC: Meaning and Definition of Find definitions for: CTC Pronunciation: [key] Citizens' Training Corps. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ctc (Thesaurus) CTA ctenidium Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language