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  • Definition
    • upheaval :a state of violent disturbance and disorder (as in politics or social conditions generally)
      • the industrial revolution was a period of great turbulence

    • upheaval :a violent disturbance
      • the convulsions of the stock market

    • upheaval :(geology) a rise of land to a higher elevation (as in the process of mountain building)

      • upheaval :disturbance usually in protest

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      • Derivative