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activate

/ˈæktɪˌveɪt/ · ac·ti·vate
verb
  1. To encourage development or induce increased activity; to stimulate. The new policy will activate the economy by creating jobs and stimulating growth.
  2. To put a device, mechanism (alarm etc.) or system into action or motion; to trigger, to actuate, to set off, to enable. To activate the alarm, press the red button on the wall.
  3. To render more reactive; excite. The loud music will activate the crowd and get them dancing.
Did you know? The word 'activate' is often used in the context of video games, where players must activate certain abilities or powers to progress through the game.
Written by Lexi Wordsworth, Dictionary Editor 2 lookups Added Jul 25, 2026