/ Dictionary / Index M milliard: Meaning and Definition of Find definitions for: mil•liard Pronunciation: (mil'yurd, -yärd), [key] — n. Brit. one thousand millions; equivalent to U.S. billion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: milliard (Thesaurus) milliampere milliary Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language