Breadcrumb Home > Thesaurus > W Synonyms of world series Find synonyms for: Noun1. World Series, series, playoffusage: series that constitutes the playoff for the baseball championship; "we watched the World Series on TV"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: legerdemain Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language