/ Dictionary / Index R reengine: Meaning and Definition of Find definitions for: re•en•gine Pronunciation: (rē-en'jun), [key] — -gined, -gin•ing. to equip with a new engine or engines, as an aircraft. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. reenforce reengineer 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