/ Thesaurus / B Synonyms of battle of marathon Find synonyms for: Noun1. Marathon, battle of Marathonusage: a battle in 490 BC in which the Athenians and their allies defeated the PersiansWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language