/ Dictionary / Index F fast-breaking: Meaning and Definition of Find definitions for: fast-break•ing Pronunciation: (fast'brā'king, fäst'-), [key] — adj. (of a news story) occurring suddenly, and often portending a series of events or further developments in rapid succession. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fast-breaking (Thesaurus) fast break fast-breeder reactor Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language