/ Dictionary / Index M main-topsail schooner: Meaning and Definition of Find definitions for: main'-top'sail schoon"er Pronunciation: [key] a two-masted or three-masted schooner having square topsails on the foremast and mainmast: a jackass brig or jackass bark. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. main-topsail main verb Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language