verb
EXAMPLES FROM CORPUS
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Both have vigorously denied tampering with the ball.
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Dougal almost felt he was tampering with something he could neither understand nor control.
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History is littered with examples of people tinkering, tampering and then tumbling.
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Orthodoxy, by its very nature, disapproves of tampering with tradition.
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The Budget Resolution contained no tax increase and no tampering with Social Security.
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They're investigating allegations of interference with witnesses and tampering with evidence in a forthcoming trial.