Did you know?

Click any word in a definition or example to find the entry for that word

tamper - definition and synonyms


What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.



The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

verb tamper pronunciation in British English /ˈtæmpə(r)/
Word Forms
present tense
present participletampering
past tensetampered
past participletampered

Related words

phrasal verb

tamper with

Word Forms
present tense
I/you/we/theytamper with
he/she/ittampers with
present participletampering with
past tensetampered with
past participletampered with
tamper with something to touch something that you should not touch, and to change it in some way, often because you want to spoil it

It was clear that someone had tampered with the computer.

the possibility that evidence might be tampered with


sea lion

in an online conversation, repeatedly asking a person questions which suggest that you are interested in what they are talking about, but are actually intended to annoy them

BuzzWord Article

Word of the Day


to teach someone

Open Dictionary


an electric skateboard

add a word


A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog
Macmillan learn live love play