buttoncode
nounUK /ˈbʌtənkəʊd/
US /ˈbʌtənkoʊd/
A buttoncode is a secret set of button presses that opens or starts something.
She typed the buttoncode to open the secret door.
OTHER MEANINGS
2. A short sequence of button presses used to unlock a game or app feature.
Enter the buttoncode to get the bonus level.
3. A label or number printed on a button to identify it.
Check the buttoncode on the back to find the right part.
4. A coded signal sent when a button is pressed.
The remote sends a buttoncode to the TV.