What is the meaning of tamper?

noun

• A tool for tamping (e. G., for tamping tobacco into a pipe bowl or a charge into a drill hole etc..
  • synonyms: tamp, tamping bar

verb

• Play around with or alter or falsify, usually secretively or dishonestly.
  • usage: "Someone tampered with the documents on my desk"; "The reporter fiddle with the facts"
  • synonyms: fiddle, monkey
• Intrude in other people's affairs or business; interfere unwantedly.
  • usage: "Don't meddle in my affairs"
  • synonyms: meddle