activate

word

/ˈæktəˌveɪt/
AK-tuh-vayt
/ˈæktɪvˌeɪt/
AK-ti-vayt

Definition

To make something start working or begin to function, often by turning it on or starting a process.

Usage & Nuances

Often used in technical, scientific, or digital contexts (activate an account/device/alarm). More formal than 'turn on'. Common collocations: 'activate your account', 'activate the alarm', 'activate a feature'. Not used for lights/electronic appliances in everyday talk—use 'turn on' instead.

Example Sentences

Please activate your account by clicking the link.

basic

How do I activate the alarm system?

basic

You need to activate the new SIM card.

basic

It takes only a minute to activate the new feature on your phone.

natural

Make sure you activate your travel insurance before leaving.

natural

Did you remember to activate airplane mode before takeoff?

natural