Synonyms of 'tamper'
1 interfere with
He found his computer had been tampered with.
fiddle with (informal)
mess about with
muck about with (British , slang)
monkey around with
fool about with (informal)
I don't want to be accused of tampering with the evidence.
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The ability to corrupt politicians, policemen, and judges was fundamental to Mafia operations.
If someone fixes a race, election, contest, or other event, they make unfair or illegal arrangements or use deception to affect the result.
They offered players bribes to fix a league match.
If you say that someone manipulates people, you disapprove of them because they skilfully force or persuade people to do what they want.
He's a very difficult character. He manipulates people.
She was unable, for once, to manipulate events.
Thesaurus for tamper from the Collins English Thesaurus
If someone tampers with something, they interfere with it or try to change it when they have no right to do so.