/ Dictionary / Index O Oise: Meaning and Definition of Find definitions for: Oise Pronunciation: (waz), [key] — n. a river in W Europe, flowing SW from S Belgium through N France to the Seine, near Paris. 186 mi. (300 km) long. a department in N France. 606,320; 2273 sq. mi. (5885 sq. km). Cap.: Beauvais. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Oireachtas Oisin Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language