/ Thesaurus / C Synonyms of communication channel Find synonyms for: Noun1. channel, communication channel, line, communication, communicatingusage: (often plural) a means of communication or access; "it must go through official channels"; "lines of communication were set up between the two firms"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language