activate

verb

ˈak-tə-ˌvāt How to pronounce activate (audio)
Definition of activatenext
as in to trigger
to cause to function the thermostat is set to activate the heating system only when the temperature drops below 65 degrees

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

Example Sentences

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.
Recent Examples of activate Christensen can now be activated off IR and onto the 53-man roster at any time. — Alex Zietlow, Charlotte Observer, 2 Nov. 2026 Colorado Task Force 1 was activated Monday morning to respond to historic flooding across southern and southwestern Colorado. — Jennifer McRae, CBS News, 2 Nov. 2026 The city declared a state of emergency on Monday, activating a command post and deploying emergency services throughout the week. — Jack Flemming, Los Angeles Times, 30 Oct. 2026 Police said officers did not activate emergency lights or initiate a pursuit at this time. — Staff Report, Hartford Courant, 30 Oct. 2026 See All Example Sentences for activate
Recent Examples of Synonyms for activate
  1. trigger
  2. spark
  3. drive
  4. power
  5. generate
  6. move
Verb
  • The intense heat triggers a rapid reaction in which carbon bonds with silica to form silicon carbide, a ultra-hard, heat-tolerant compound.
    — Mrigakshi Dixit, Interesting Engineering, 6 Nov. 2026
  • Four days later, she was reported missing, triggering an intense search by locals, the police department and the FBI.
    — Dalia Faheid, CNN Money, 6 Nov. 2026
Definition of trigger
Verb
  • The spot sparked national bipartisan backlash on grounds that Acton's mother had lost custody of her children decades ago after her husband, their stepfather, was indicted for raping Acton as a child.
    — Arkansas Online, Arkansas Online, 4 Nov. 2026
  • Grant sparked a 16-1 in the first quarter that broke the game open after the Golden Eagles cut TCU’s lead to 9-8.
    — Steven Johnson, Fort Worth Star-Telegram, 4 Nov. 2026
Definition of spark
Verb
  • Guzman has an April 2009 conviction of driving drunk and causing injury to another person in Sacramento County, according to the complaint.
    — Rosalio Ahumada, Sacbee.com, 4 Nov. 2026
  • The pre-Election Day surge was driven mainly by in-person voting.
    — Miles Parks, NPR, 4 Nov. 2026
Definition of drive
Verb
  • This provides the free electrons to power the EV’s motors and systems during operation.
    — Christopher McFadden, Interesting Engineering, 7 Nov. 2026
  • Limp said the company will continue to manufacture the existing BE-4 engine for United Launch Alliance, which uses two of the engines to power its Vulcan rocket.
    — Eric Berger, ArsTechnica, 6 Nov. 2026
Definition of power
Verb
  • The cyclists cross the state, generating an economic impact estimated at $25 million.
    — Washington Post, Washington Post, 24 Oct. 2026
  • In tests by cybersecurity firm McAfee, a three-second clip was enough to generate a clone with an 85% match to the original speaker.
    — Muskaan Arshad, Fortune, 24 Oct. 2026
Definition of generate
Verb
  • Their shared ambition is straightforward, which is to move fusion from experimental physics rigs into commercially viable power plants.
    — Aman Tripathi, Interesting Engineering, 5 Nov. 2026
  • Kerhonkson was also within easy reach of her sister, who had moved with her family from the East Village to Millbrook, in Dutchess County, in 2024.
    — Heather Senison, New York Times, 5 Nov. 2026
Definition of move

Browse Nearby Words

actions
activate
activated
See all Nearby Words

Cite this Entry

“Activate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/activate. Accessed 7 Nov. 2026.

Copy Citation
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Last Updated: - Updated example sentences

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of abandon

See Definitions and Examples »

Popular in Grammar & Usage

See More

How to Use 'Who' vs. 'Whom'

Merriam-Webster’s Great Big List of Words You Love to Hate

'Affect' vs. 'Effect'

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?
See More

Popular in Wordplay

See More

Great Big List of Beautiful and Useless Words, Vol. 5

9 Words That Sound Like Insults But Aren't

7 Words for Old-Timey Vehicles

The Words of the Week - Nov. 6

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

How to Use 'Who' vs. 'Whom'

Great Big List of Beautiful and Useless Words, Vol. 5

9 Words That Sound Like Insults But Aren't
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
woman sitting on floor holding book in front of her face on pink background
Famous Novels, Last Lines Quiz Needless to say, spoiler alert.
See All