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src: wikipedia
- Definition
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- 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