powerkey
nounUK /ˈpaʊəkiː/
US /ˈpaʊərkiː/
A powerkey is a special button that turns a machine on or off.
Press the powerkey to start the computer.
OTHER MEANINGS
2. A key on a keyboard that controls power or a special function.
The powerkey on the remote is at the top.
3. A secret code or key that gives someone special control or access.
Only the captain knows the powerkey to the ship's door.
4. A symbol or icon that stands for power in a game or story.
The hero found the powerkey hidden in the cave.