/ Thesaurus / O Synonyms of opal glass Find synonyms for: Noun1. opal glass, milk glass, glassusage: a milky white translucent or opaque glassWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language