/ Thesaurus / G Synonyms of gritrock Find synonyms for: Noun1. grit, gritrock, gritstone, sandstoneusage: a hard coarse-grained siliceous sandstoneWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. 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