Breadcrumb Home > Thesaurus > O Synonyms of oilstone Find synonyms for: Noun1. oilstone, whetstoneusage: a whetstone for use with oilWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of oilstone (Dictionary) ✖ Related Content Daily Word Quiz: ultimathule Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language