/ Dictionary / Index M millage: Meaning and Definition of Find definitions for: mill•age Pronunciation: (mil'ij), [key] — n. the tax rate, as for property, assessed in mills per dollar. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. millable Millais Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language