Meaning of power up | Babel Free

Definitions

1. To turn the electrical power on to a device as a precondition to making it operational.
   transitive
2. To become ready for operation as a result of the provision of electrical power.
   intransitive

Examples

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

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

CEFR level