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verb Common

activate

AK-tih-vayt

Activate (verb) means to make something start working or become active. Example: “Press the button to activate the alarm system.”

verb
1
To make something start working or become active.
"Press the button to activate the alarm system."
"The new phone must be activated before you can make calls."
2
To make a chemical or biological process more reactive or effective.
"Warm water helps activate the yeast in the dough."

How to use activate

Learner’s notes

In plain EnglishTo switch something on or set it in motion, whether it's a device, an account, or a chemical reaction.

Common pairings
activate an account activate the alarm activate yeast

Word forms

activated past tense, activates singular

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Test yourself on “activate” A quick quiz — meaning, synonyms & usage

Fill the gap

Can you complete this real example?

Press the button to _____ the alarm system.

Etymology

From active plus the verb-forming suffix -ate.

actuate enable get going set going set in motion set off spur start stimulate trigger turn on

Antonyms

deactivate inactivate

Related words

Rhymes for activate

See all rhymes for activate →

Frequently asked questions

What does “activate” mean?

The word “activate” means to make something start working or become active. In plain terms, to switch something on or set it in motion, whether it's a device, an account, or a chemical reaction.

How do you pronounce “activate”?

“Activate” is pronounced AK-tih-vayt (/ˈæktɪˌveɪt/ in IPA).

How do you use “activate” in a sentence?

Here is “activate” used in a sentence: “Press the button to activate the alarm system.”

What is another word for “activate”?

Words with a similar meaning to “activate” include actuate, enable, get going, set going, set in motion and set off.

What is the opposite of “activate”?

The opposite of “activate” — its antonyms — are deactivate and inactivate.

What part of speech is “activate”?

“Activate” is a verb.

Is “activate” a common word?

“Activate” is a fairly common word in modern English.

How many meanings does “activate” have?

“Activate” has 2 distinct senses listed in this dictionary. The most common is: to make something start working or become active.

What is the difference between activate and enable?

Activate means to make something start working or become active, often switching it from an off or dormant state to a functioning one. Enable more broadly means to give something the ability or permission to happen, which may not always involve directly starting it.

When is activate used in a chemical or biological sense?

Activate can describe making a chemical or biological process more reactive or effective, such as activating an enzyme. This scientific use is distinct from the general sense of simply turning something on.

Is activate used for devices, accounts, and processes alike?

Yes, activate is used broadly across contexts, including activating a device, a bank card, a software licence, or a biological process. In each case it signals a shift from inactive to functioning.

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Definitions: FreeDict original editorial