/ Dictionary / Index M millionfold: Meaning and Definition of Find definitions for: mil•lion•fold Pronunciation: (mil'yun-fōld'), [key] — adj. comprising a million parts or members. a million times as great or as much: a millionfold increase. —adv. in a millionfold measure. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: millionfold (Thesaurus) million electron volts millionth 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