/ Thesaurus / B Synonyms of bennie Find synonyms for: Noun1. Benzedrine, bennie, amphetamine, pep pill, upper, speedusage: a form of amphetamineWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: industrious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language