/ Thesaurus / J Synonyms of james knox polk Find synonyms for: Noun1. Polk, James Polk, James K. Polk, James Knox Polk, President Polkusage: 11th President of the United States; his expansionism led to the Mexican War and the annexation of California and much of the southwest (1795-1849)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language