/ Thesaurus / B Synonyms of balloon sail Find synonyms for: Noun1. balloon sail, sail, canvas, canvass, sheetusage: any light loose sailWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: sumptuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language