/ Thesaurus / B Synonyms of building department Find synonyms for: Noun1. plant department, building department, business departmentusage: the division of a business responsible for building and maintaining the physical plantWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language