power up

power up (third-person singular simple present powers up, present participle powering up, simple past and past participle powered up)

1. (transitive) To turn the electrical power on to a device as a precondition to making it operational.

   Every morning he powered up his electronic devices, even before making coffee.

2. (intransitive) To become ready for operation as a result of the provision of electrical power.

   The office systems power up automatically at 7:30am on workdays.

• boot up

• power down

• fire up
• warm up