/ Dictionary / Index F flight leader: Meaning and Definition of Find definitions for: flight' lead"er Pronunciation: [key] a pilot who commands a flight of military airplanes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. flight instrument flightless Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language