/ Dictionary / Index N Napo: Meaning and Definition of Find definitions for: Na•po Pronunciation: (nä'pô), [key] — n. a South American river flowing from central Ecuador through NE Peru to the Amazon River. ab. 700 mi. (1125 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Naples yellow napoleon Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language