/ Dictionary / Index M Mackinaw boat: Meaning and Definition of Find definitions for: Mack'inaw boat" Pronunciation: [key] a flat-bottomed boat with sharp prow and square stern, propelled by oars and sometimes sails, formerly widely used on the upper Great Lakes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mackinaw blanket Mackinaw trout Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language