What does the word tamper mean?

Usage examples for tamper

  1. Thought it would give you a good chance to tamper with the books!" – Ghost Beyond the Gate by Mildred A. Wirt
  2. " Anybody who would tamper with boats would tamper with a cabin, we reckon," growled Mr. Grigsby. – Gold Seekers of '49 by Edwin L. Sabin
  3. A true union man regards with veneration the constitution and hesitates to tamper with it except in a perfectly constitutional manner. – To Him That Hath A Novel Of The West Of Today by Ralph Connor