to meddle, especially for the purpose of altering, damaging, or misusing (usually followed by with): Someone has been tampering with the lock.
to make changes in something, especially in order to falsify (usually followed by with): to tamper with official records.
to engage secretly or improperly in something.
to engage in underhand or corrupt dealings, especially in order to influence improperly (usually followed by with): Any lawyer who tries to tamper with a jury should be disbarred.
- tam·per·er, noun
- un·tam·pered, adjective
How to use tamper in a sentence
So, anyone who tampered with term limits would be automatically a candidate for deposition.Honduras Presidential Election Passes Over Chavez Loyalists | Mac Margolis | November 27, 2013 | THE DAILY BEAST
The Indian Supreme Court exonerated Modi a decade later, but by then many witnesses had been tampered with or died or killed.Should Hindu Nationalist Narendra Modi Be Allowed a U.S. Visa? | Shikha Dalmia | July 31, 2013 | THE DAILY BEAST
What if Fine was right that the tape had been tampered with?Why News Organizations Were Silent About Syracuse Abuse Allegations | Howard Kurtz | November 28, 2011 | THE DAILY BEAST
He went on to suggest the Nielsen ratings themselves were being tampered with by NBC sympathizers.
The locks of the hall had been tampered with so that their keys were of no avail.Fifty-Two Stories For Girls | Various
As the false prophets tampered with God's testament in the days of Paul, so many do in our day.Commentary on the Epistle to the Galatians | Martin Luther
When the Indians in general became aware that the terms of capitulation had been tampered with they were highly indignant.Four American Indians | Edson L. Whitney
The work seemed even and level, smooth as granite, and no more to be tampered with than the pitiless rock itself.Sarchedon | G. J. (George John) Whyte-Melville
You have tampered with my vassals, and your royal pleasure must needs dispose of the hand of a ward of Burgundy.Quentin Durward | Sir Walter Scott
British Dictionary definitions for tamper (1 of 2)
(usually foll by with) to interfere or meddle
to use corrupt practices such as bribery or blackmail
(usually foll by with) to attempt to influence or corrupt, esp by bribery: to tamper with the jury
- tamperer, noun
British Dictionary definitions for tamper (2 of 2)
a person or thing that tamps, esp an instrument for packing down tobacco in a pipe
a casing around the core of a nuclear weapon to increase its efficiency by reflecting neutrons and delaying the expansion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012