/ Thesaurus / F Synonyms of four hundred Find synonyms for: Noun1. Four Hundred, set, circle, band, lotusage: the exclusive social set of a cityAdjective1. four hundred, 400, cd, cardinal (vs. ordinal)usage: being one hundred more than three hundredWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language