/ Thesaurus / H Synonyms of hollow out Find synonyms for: Verb1. hollow, hollow out, core out, emptyusage: remove the interior of; "hollow out a tree trunk"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: braggart Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language