restartbutton
nounUK /ˌriːˈstɑːt bʌtn/
US /ˌriˈstɑrt bʌtn/
A button you press to make something start again from the beginning.
Press the restart button to play the game again.
RELATED WORDS
OTHER MEANINGS
2. A control that restarts a computer or device.
The computer froze, so I pressed the restart button.
3. A feature in a game that begins the level again.
He hit the restart button after losing all his lives.
4. A way to begin an activity over from the start.
Let's use this as a restart button for our project.