say it: TAM-pur
tamper is a verb and noun meaning "play around with or alter or falsify, usually secretively or dishonestly". It carries 3 recorded senses.
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”
intrude in other people's affairs or business; interfere unwantedly
“Don't meddle in my affairs!”
a tool for tamping (e.g., for tamping tobacco into a pipe bowl or a charge into a drill hole etc.)
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for tamper come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.