/ Dictionary / Index S spinnaker: Meaning and Definition of Find definitions for: spin•na•ker Pronunciation: (spin'u-kur), [key] — n. Naut. a large, usually triangular sail carried by a yacht as a headsail when running before the wind or when the wind is abaft the beam. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spinnaker (Thesaurus) Spingarn spinner Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language