powerswitch

noun

UK /ˈpaʊəswɪtʃ/

US /ˈpaʊərswɪtʃ/

A button or lever you press to turn a machine on or off.

Press the powerswitch to start the computer.

SYNONYMS

on-off switch power button toggle control switch cutoff

RELATED WORDS

power switch button outlet electricity

OTHER MEANINGS

2. A device that cuts off electrical power for safety.

Flip the powerswitch before fixing the wires.

3. A person who can change from one role or state to another.

The coach is a powerswitch who plays both offense and defense.

4. A feature that changes a system between two modes.

The app has a powerswitch to turn dark mode on.