deactivate

verb

de·​ac·​ti·​vate (ˌ)dē-ˈak-tə-ˌvāt How to pronounce deactivate (audio)
deactivated; deactivating; deactivates
Synonyms of deactivatenext

transitive verb

: to make inactive or ineffective
deactivate a bomb
deactivate a chemical compound
deactivation noun

Examples of deactivate in a Sentence

deactivate the machine carefully, or you'll risk an electric shock
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Once stationary, deactivate all lights except the hazard flashers, engage the emergency brake, and release the brake pedal to ensure your tail lights are not illuminated, reducing the risk of other drivers colliding with your stationary vehicle. Nc Weather Bot, Charlotte Observer, 4 Feb. 2026 The influencer — whose real name is Da Sol Lee — boasted millions of followers across platforms, including YouTube and Instagram, the latter of which is now deactivated. Zoey Lyttle, PEOPLE, 4 Feb. 2026 In Australia, social media companies deactivated nearly 5 million accounts belonging to teenagers within weeks of the ban taking effect, the internet regulator said last month, suggesting the measure could have a sweeping impact. Reuters wire Service, Dallas Morning News, 3 Feb. 2026 Fascinating economic research has shown that many social-media users would pay money to avoid a break from social media while others continue using it, but many of those same users would pay money to have the entire network deactivated for everyone. Keith Humphreys, The Atlantic, 2 Feb. 2026 See All Example Sentences for deactivate

Word History

First Known Use

1920, in the meaning defined above

Time Traveler
The first known use of deactivate was in 1920

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Cite this Entry

“Deactivate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deactivate. Accessed 6 Feb. 2026.

Kids Definition

deactivate

verb
de·​ac·​ti·​vate (ˈ)dē-ˈak-tə-ˌvāt How to pronounce deactivate (audio)
: to make inactive or ineffective
deactivation noun

Medical Definition

deactivate

transitive verb
de·​ac·​ti·​vate (ˈ)dē-ˈak-tə-ˌvāt How to pronounce deactivate (audio)
deactivated; deactivating
1
: to make inactive or ineffective
2
: to deprive of chemical activity
deactivate an enzyme
deactivation noun

More from Merriam-Webster on deactivate

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