/ Dictionary / Index G galleon: Meaning and Definition of Find definitions for: gal•le•on Pronunciation: (gal'ē-un, gal'yun), [key] — n. a large sailing vessel of the 15th to the 17th centuries used as a fighting or merchant ship, square-rigged on the foremast and mainmast and generally lateen-rigged on one or two after masts. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: galleon (Thesaurus) Gallegos galleria 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