/ Dictionary / Index R Rennie: Meaning and Definition of Find definitions for: Ren•nie Pronunciation: (ren'ē), [key] 1761–1821, Scottish engineer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rennet rennin 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