/ Thesaurus / J Synonyms of jackstones Find synonyms for: Noun1. jack, jackstones, game equipmentusage: game equipment consisting of one of several small six-pointed metal pieces that are picked up while bouncing a ball in the game of jacks2. jacks, jackstones, knucklebones, child's gameusage: a game in which jackstones are thrown and picked up in various groups between bounces of a small rubber ballWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language