/ Dictionary / Index N Nipigon: Meaning and Definition of Find definitions for: Nip•i•gon Pronunciation: (nip'i-gon"), [key] — n. a lake in SW Ontario, in S central Canada. ab. 1870 sq. mi. (4845 sq. km). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nipa Nipissing Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language