launchbutton
nounUK /lɔːntʃ ˈbʌtən/
US /lɔntʃ ˈbʌtən/
A button you press to make something start or go.
Press the launch button to start the rocket.
RELATED WORDS
OTHER MEANINGS
2. A button on a computer screen that opens a program or game.
Click the launch button to open the game.
3. A switch that sends a rocket or missile into the air.
The engineer pressed the launch button at countdown zero.
4. A button that starts a new project or activity.
The team hit the launch button on their new website.