power off
A2 neutral separable both
In simple words
To turn a machine or device completely off.
Literal meaning: Switching the electrical power to the 'off' state — entirely transparent and non-idiomatic.
Meanings
1 A2 neutral
To turn off an electronic device completely.
"Could you power off your phone during the meeting, please?"
Grammar: separable
2 A2 neutral
For a device to lose power and stop working, either deliberately or due to a fault.
"My phone powered off without warning in the middle of my call."
Grammar: inseparable
Usage notes
Very common in everyday technology use — smartphones, tablets, computers, printers. Often appears as the label on physical buttons or on-screen menus. Slightly more informal and direct than 'power down'. Interchangeable with 'turn off' in most everyday contexts.
Commonly used with
phone tablet computer TV device screen
Forms
Base
power off
I/you/we/they
3rd person
powers off
he/she/it
Past simple
powered off
yesterday
Past participle
powered off
have + pp
-ing form
powering off
continuous
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Synonyms
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