/ Thesaurus / U Synonyms of union soldier Find synonyms for: Noun1. Federal, Federal soldier, Union soldier, Yankee, Yank, Northernerusage: a member of the Union Army during the American Civil WarWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language