/ Dictionary / Index N National Bureau of Standards: Meaning and Definition of Find definitions for: Na'tional Bu'reau of Stand'ards Pronunciation: [key] — U.S. Govt. U.S. Govt. the federal agency that establishes the standards for units used in measuring the physical properties of substances. Abbr.: NBS, N.B.S. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. National Book Award national cemetery Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language