/ Dictionary / Index O original gum: Meaning and Definition of Find definitions for: orig'inal gum' Pronunciation: [key] — Philately. Philately. See(def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. original equipment manufacturer originality Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language