/ Thesaurus / M Synonyms of massed Find synonyms for: Verb1. mass, crowd, crowd togetherusage: join together into a mass or collect or form a mass; "Crowds were massing outside the palace"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language