/ Dictionary / Index D double demy: Meaning and Definition of Find definitions for: dou'ble dem'y Pronunciation: [key] a size of printing paper, 22 × 35 in. (57 × 89 cm). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. double decomposition double-digit Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language