/ Dictionary / Index A airplane: Meaning and Definition of Find definitions for: air•plane Pronunciation: (âr'plān"), [key] — n. a heavier-than-air aircraft kept aloft by the upward thrust exerted by the passing air on its fixed wings and driven by propellers, jet propulsion, etc. any similar heavier-than-air aircraft, as a glider or helicopter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: airplane (Thesaurus) air pistol airplane carrier Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language