/ Thesaurus / B Synonyms of burial vault Find synonyms for: Noun1. vault, burial vault, burial chamber, sepulcher, sepulchre, sepultureusage: a burial chamber (usually underground)WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abominable Analogy of the Day: Today?s Analogy Spelling Bee: Today?s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language