/ Dictionary / Index N National Weather Service: Meaning and Definition of Find definitions for: Na'tional Weath'er Serv"ice Pronunciation: [key] an agency of the National Oceanic and Atmospheric Administration that is responsible for meteorological observations, weather forecasts, storm and flood warnings, etc. Formerly, Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. National War Labor Board nationhood Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language