/ Dictionary / Index A Aisne: Meaning and Definition of Find definitions for: Aisne Pronunciation: (ān Fr. en), [key] — n. a river in N France, flowing NW and W to the Oise. 175 mi. (280 km) long. a department in N France. 533,862. 2868 sq. mi. (7430 sq. km). Cap.: Laon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aisle ait Related Content Daily Word Quiz: pedagogy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language