Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “activate”

activate

verb [T]     /ˈæk.tɪ.veɪt/
to cause something to start : The alarm is activated by the lightest pressure .Causing things to happen specialized chemistry to make a chemical reaction happen more quickly , especially by heating Physical and chemical processes activation     /ˌæk.tɪˈveɪ.ʃən/ noun [U] Causing things to happen
(Definition of activate verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of activate

Definitions of “activate” in other dictionaries

Word of the Day

amicable

relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More