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Definition of tamper

tamper

/ˈtæm.pər/
tam · per

Plural:tampers
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Past Simple:tampered
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Past Participle:tampered
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Present Participle:tampering
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tamper Lexical Profile

tamper Game Scores & Validity

• verb

1

To interfere with something in an unauthorized, secret, or improper manner in order to alter, damage, or falsify it (usually followed by 'with').

Example

"A broken security seal on the bottle indicated that someone might have tampered with the contents."


2

To exert secret, illegal, or corrupt influence upon a person, such as a witness, juror, or official, in order to alter their testimony or decision (usually followed by 'with').

Example

"The defense attorney was investigated after allegations surfaced that an associate had tried to tamper with a key witness."

Synonyms
View all synonyms for tamper
Antonyms
View all antonyms for tamper

• noun

1

A tool or machine used for packing down or compacting a substance, such as soil, gravel, tobacco in a pipe, or finely ground coffee in an espresso machine.

Example

"The barista used a heavy stainless-steel tamper to press the espresso grounds evenly into the portafilter."

Word Nuance & Usage

The verb 'tamper' is almost always followed by the preposition 'with' (e.g., 'tamper with evidence' or 'tamper with a witness') and implies unauthorized, improper, or harmful interference.

• Rhymes for tamper

Word Origin & Etymology

The verb 'tamper' (meaning to meddle or interfere) emerged in the 16th century as an alteration of 'temper', originally referring to working or mixing clay before shifting to mean meddling with something. The noun 'tamper' is an agent derivative of the verb 'tamp' (to pack down firmly).

Cite this Entry


Wordmom. (2026). Definition of Tamper. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/tamper
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