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verb

tamper

TAM-puh

Tamper (verb) means to interfere with something in an unauthorized or harmful way. Example: “Someone had tampered with the lock overnight.”

verb
1
To interfere with something in an unauthorized or harmful way.
"Someone had tampered with the lock overnight."
"It's a crime to tamper with evidence."
2
To try to influence someone improperly, often illegally.
"The defendant was accused of tampering with a witness."

How to use tamper

Learner’s notes

In plain EnglishTo meddle with something you shouldn't, usually to damage, alter, or corrupt it.

Common mistake

Always takes "with" — you tamper with something, not tamper something.

Common pairings
tamper with evidence tamper with a witness tamper with a lock

Word forms

tampered past tense, tampers plural, tampers singular

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Someone had _____ with the lock overnight.

Etymology

From tamp ("to pack down firmly") plus the agent/frequentative suffix -er.

Related words

Rhymes for tamper

See all rhymes for tamper →

Frequently asked questions

What does “tamper” mean?

The word “tamper” means to interfere with something in an unauthorized or harmful way. In plain terms, to meddle with something you shouldn't, usually to damage, alter, or corrupt it.

How do you pronounce “tamper”?

“Tamper” is pronounced TAM-puh (/ˈtæm.pə(ɹ)/ in IPA).

How do you use “tamper” in a sentence?

Here is “tamper” used in a sentence: “Someone had tampered with the lock overnight.”

What part of speech is “tamper”?

“Tamper” is a verb.

How many meanings does “tamper” have?

“Tamper” has 2 distinct senses listed in this dictionary. The most common is: to interfere with something in an unauthorized or harmful way.

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Definitions: FreeDict original editorial