/ Dictionary / Index N Niigata: Meaning and Definition of Find definitions for: Ni•i•ga•ta Pronunciation: (nē'ē-gä'tä), [key] — n. a seaport on NW Honshu, in central Japan. 457,783. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Nihon Niihau Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language