Synonyms of activate

activate

verb

ˈak-tə-ˌvāt 

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

• trigger
• spark
• drive
• power
• generate
• move
• start
• actuate
• ignite
• fuel
• set off
• provoke
• turn on
• push
• run
• charge
• crank (up)
• touch off
• fire
• stimulate
• reactivate
• launch
• switch
• energize
• electrify
• release
• turn over
• accelerate
• recharge
• arouse
• excite
• discharge
• kick over
• stir up
• incite
• trip
• catalyze
• instigate
• quicken
• vitalize
• jump-start
• step up
• kick-start
• speed (up)

Antonyms & Near Antonyms

• kill
• cut
• shut off
• cut out
• stop
• check
• turn off
• deactivate
• brake
• cut off
• stick
• halt
• arrest
• draw up
• suppress
• slow
• repress
• stall
• jam
• decelerate
• stunt

Example Sentences

Recent Examples of activate

The large stores generated more growth by activating existing customers than by acquiring new ones, although acquisition also contributed substantially. — Ayşe Çetinel, Harvard Business Review, 18 Aug. 2026

The drug activates the orexin pathway that is dysfunctional in people with the condition, restoring the brain’s ability to remain alert during the day, and is approved for people with narcolepsy type 1. — Alice Park, Time, 18 Aug. 2026

Braun also activated emergency Supplemental Nutrition Assistance Program Benefits for SNAP recipients who lost food in the storms. — Jen Guadarrama, IndyStar, 18 Aug. 2026

So as Bell participated in his second NFL training camp practice Tuesday since being activated Monday, that will still carry him into his first professional season. — David Furones, Sun Sentinel, 18 Aug. 2026