controllerbutton
nounUK /kənˈtrəʊlə ˈbʌtən/
US /kənˈtroʊlər ˈbʌtən/
A controller button is a small part you press on a game controller to make something happen in a game.
Press the green controller button to make your character jump.
RELATED WORDS
OTHER MEANINGS
2. A button on a remote control that changes how a device works.
He pressed the controller button to turn up the volume.
3. A switch on a machine that starts or stops it.
The worker pushed the controller button to stop the conveyor belt.
4. A key on a panel used to adjust settings.
She tapped the controller button to change the light color.