/ Dictionary / Index C clear channel: Meaning and Definition of Find definitions for: clear' chan'nel Pronunciation: [key] — Radio. Radio. a radio broadcast channel cleared for long-distance broadcasting during nighttime hours. a broadcast channel free of undesirable interference. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. clearance Clearchus Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language