/ Thesaurus / M Synonyms of mackinac bridge Find synonyms for: Noun1. Mackinac Bridgeusage: a suspension bridge across the channel between the lower and upper peninsulas of MichiganWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language