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change to the contrary;
"The trend was reversed"
"the tides turned against him"
"public opinion turned when it was revealed that the president had an affair with a White House intern"
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turn inside out or upside down
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rule against;
"The Republicans were overruled when the House voted on the bill"
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cancel officially;
"He revoked the ban on smoking"
"lift an embargo"
"vacate a death sentence"
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reverse the position, order, relation, or condition of;
"when forming a question, invert the subject and the verb"