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groundswell definition

ground·swell (gro̵und′swel′)

noun

  1. a violent swelling or rolling of the ocean, caused by a distant storm or earthquake
  2. a rapidly growing wave of popular sentiment, opinion, etc.

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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