/ Thesaurus / F Synonyms of fire trench Find synonyms for: Noun1. fire trench, trenchusage: a trench especially constructed for the delivery of small-arms fireWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language