breakthrough Hear it!

breakthrough definition

break·through (-t̸hro̵̅o̅′)

noun

  1. the act, result, or place of breaking through against resistance, as in warfare
  2. a strikingly important advance or discovery

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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