/ Dictionary / Index F fly-by-wire: Meaning and Definition of Find definitions for: fly-by-wire Pronunciation: (flī'bī wīr'), [key] — adj. (of aircraft or spacecraft) activated entirely by electronic controls. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fly-by-night fly-cast Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language