/ Thesaurus / S Synonyms of sealing wax Find synonyms for: Noun1. sealing wax, seal, fastener, fastening, holdfast, fixingusage: fastener consisting of a resinous composition that is plastic when warm; used for sealing documents and parcels and lettersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language