/ Dictionary / Index A aircraft: Meaning and Definition of Find definitions for: air•craft Pronunciation: (âr'kraft", -kräft"), [key] — pl. -craft. any machine supported for flight in the air by buoyancy or by the dynamic action of air on its surfaces, esp. powered airplanes, gliders, and helicopters. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aircraft (Thesaurus) air cover aircraft carrier Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language