upheaval noun
ADJ. big, enormous, great, major, massive, violent | domestic, economic, emotional, political, social The loss of his high-paying job caused enormous domestic upheaval. | revolutionary
VERB + UPHEAVAL cause, provoke | go through, undergo The company underwent a massive upheaval after the takeover.
PREP. during/in the ~ He rose to power during the political upheavals of the 1990s.
PHRASES a period of upheaval
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