/ Thesaurus / T Synonyms of theater of war Find synonyms for: Noun1. theater of war, theatre of war, regionusage: the entire land, sea, and air area that may become or is directly involved in war operationsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: aversion Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language