on standby
idiomPart ofstandby
on standby — idiom
1. ready to be used or to take action immediately if necessary. Can refer to people
1.idiom
Definition
ready to be used or to take action immediately if necessary. Can refer to people, equipment, or electronic devices depending on context.
Example
The hospital has two ambulances on standby at all times during the holiday weekend.
Do not leave your laptop on standby overnight if you want to save battery life.