/ Thesaurus / C Synonyms of chimneystack Find synonyms for: Noun1. chimneystack, flueusage: the part of the chimney that is above the roof; usually has several fluesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language