Breadcrumb Home > Dictionary > Index E expansionism: Meaning and Definition of Find definitions for: ex•pan•sion•ism Pronunciation: (ik-span'shu-niz"um), [key] — n. a policy of expansion, as of territory or currency: the colonial expansionism of Europe in the 19th century. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: expansionism (Thesaurus) expansion chamber expansion joint TrendingHere are the facts and trivia that people are buzzing about. Did Birds Evolve from Dinosaurs? The Twelve Dancing Princesses Current Events This Week: January 2023 African Americans by the Numbers Andersen's Fairy Tales: Contents The Celtic Twilight: A Teller of Tales ✖ Related Content Daily Word Quiz: antiphon Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language