/ Dictionary / Index R Roselle Park: Meaning and Definition of Find definitions for: Roselle' Park' Pronunciation: [key] a borough in NE New Jersey. 13,377. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Rosellen rose madder Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language