Meaning & Definition of Tamper in English

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

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. Intrude in other people's affairs or business

• Interfere unwantedly

• "Don't meddle in my affairs!"