quitbutton
nounUK /ˈkwɪtˌbʌt.ən/
US /ˈkwɪtˌbʌt̬.ən/
A quitbutton is a button you press to stop a game or program.
She clicked the quitbutton to close the game.
OTHER MEANINGS
2. A control that ends a session or logs you out.
Press the quitbutton when you finish your turn.
3. A physical switch that shuts off a machine.
The quitbutton on the toy robot turned it off.
4. A way to give up or back out of something.
He hit the quitbutton on the quiz before answering.