Breadcrumb Home > Dictionary Cite Meaning of Roubaix Find definitions for: Rou•baix Pronunciation: (r-be'), [key] — n. a city in N France, NE of Lille. 109,797. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Rouault rouble Related Content Daily Word Quiz: recherch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language