/ Thesaurus / B Synonyms of bay rum Find synonyms for: Noun1. bay rum, after-shave, after-shave lotionusage: an aromatic liquid originally obtained by distilling the leaves of the bayberry tree with rumWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: misanthropic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language