/ Dictionary / Index N nylghai: Meaning and Definition of Find definitions for: nyl•ghai Pronunciation: (nil'gī), [key] — pl. -ghais, -ghai. nilgai. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nylghai (Thesaurus) Nykvist nylghau Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language