Breadcrumb Home > Thesaurus Cite Synonyms of greensand Find synonyms for: Noun1. greensand, sandstoneusage: an olive-green sandstone containing glauconiteWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.See also: greensand (Dictionary) Related Content Daily Word Quiz: quisling Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language Synonyms Index