/ Dictionary / Index N NASCAR: Meaning and Definition of Find definitions for: NASCAR Pronunciation: (nas'kär), [key] — n. National Association for Stock Car Auto Racing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Nasca nascent Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language