/ Thesaurus / L Synonyms of landing flap Find synonyms for: Noun1. landing flap, flap, flapsusage: a flap on the underside of the wing that is lowered to slow the plane for landingWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: imprudent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language