/ Dictionary / Index S skysail: Meaning and Definition of Find definitions for: sky•sail Pronunciation: (skī'sāl"Naut.skī's&schwal), [key] — n. Naut. (in a square-rigged vessel) a light square sail next above the royal. See diag. under a triangular sail set on a stay between the fore and main trucks of a racing schooner. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: skysail (Thesaurus) Skyros skyscape Related Content Daily Word Quiz: ablution Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language