/ Dictionary / Index N Nintendo: Meaning and Definition of Find definitions for: Nin•ten•do Pronunciation: (nin-ten'dō), [key] a system for playing video games. any game designed for this system. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ninon ninth Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language