/ Dictionary / Index S sailplane: Meaning and Definition of Find definitions for: sail•plane Pronunciation: (sāl'plān"), [key] — n., v., -planed, -plan•ing. —n. a very light glider that can be lifted by an upward current of air. —v.i. to soar in a sailplane. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sailplane (Thesaurus) sail plan sailyard Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language