Rogets II: The New Thesaurus, Third Edition. 1995.
tamper
VERB:
1. To prearrange the outcome of (a contest) unlawfully: fix. Idioms: stack the deck. SeeCRIMES. 2. To handle something idly, ignorantly, or destructively: fiddle, fool, meddle, mess, tinker. Informal :monkey. SeeHELP, TOUCH.