/ Dictionary / Index B Biwa: Meaning and Definition of Find definitions for: Bi•wa Pronunciation: (bē'wä), [key] the largest lake in Japan, on Honshu, near Kyoto. 260 sq. mi. (673 sq. km). Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bivouac biweekly Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language