/ Dictionary / Index N NASA: Meaning and Definition of Find definitions for: NASA Pronunciation: (nas'u), [key] — n. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nasa (Thesaurus) N.A.S. nasal Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language