/ Dictionary / Index A air route: Meaning and Definition of Find definitions for: air' route" Pronunciation: [key] a designated route for aircraft flying between particular ground locations at specified minimum altitudes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. air right air sac Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language