shakedown
adjective
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intended to test a new system under operating conditions and to familiarize the operators with the system“a shakedown cruise”
noun
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extortion of money (as by blackmail)
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a very thorough search of a person or a place“a shakedown by the police uncovered the drugs”
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initial adjustments to improve the functioning or the efficiency and to bring to a more satisfactory state“the new industry's economic shakedown”