to make a machine or piece of electrical equipment such as a television, engine, light etc start operating by pushing a button, turning a key etc
Jake turned on his computer and checked his mail.
Users can turn on smart home devices using voice commands or smartphone apps.
The excitement of the crowd reached a peak when the musicians prepared to turn on the stage lights.
A sudden power outage can disrupt the ability to turn on electronic devices.
Before leaving the house, individuals often double-check to ensure they turn on security systems.
