/ Dictionary / Index N Nyx: Meaning and Definition of Find definitions for: Nyx Pronunciation: (niks), [key] — n. an ancient Greek goddess personifying night. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nyx (Thesaurus) Nyungar N.Z. Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language