/ Thesaurus / R Synonyms of respiratory tract Find synonyms for: Noun1. respiratory tract, airway, tractusage: the passages through which air enters and leaves the bodyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: beseech Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language