/ Dictionary / Index N NASD: Meaning and Definition of Find definitions for: NASD Pronunciation: [key] National Association of Securities Dealers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nascent state NASDAQ Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language