/ Thesaurus / W Synonyms of washington monument Find synonyms for: Noun1. Washington Monumentusage: a stone obelisk built in Washington in 1884 to honor George Washington; 555 feet tallWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language