/ Thesaurus / S Synonyms of shellack Find synonyms for: Verb1. shellac, shellack, varnish, sealusage: cover with shellac; "She wanted to shellac the desk to protect it from water spots"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language