tamper

noun

  1. 1

    a tool for tamping (e.g., for tamping tobacco into a pipe bowl or a charge into a drill hole etc.)

verb

  1. 1

    play around with or alter or falsify, usually secretively or dishonestly

    Someone tampered with the documents on my desk

    The reporter fiddle with the facts

  2. 2

    intrude in other people's affairs or business; interfere unwantedly

    Don't meddle in my affairs!

Synonyms

Also useful for “tamper”:Unscrambler