firstswitch
nounUK /ˈfɜːst.swɪtʃ/
US /ˈfɝːst.swɪtʃ/
The first switch you turn on or press to start something.
She flipped the firstswitch and the lights came on.
OTHER MEANINGS
2. The earliest change or turning point in a series of events.
The firstswitch in the story came when the hero left home.
3. In computing, the first option or flag set in a command.
The firstswitch tells the program to run quietly.
4. A person who makes the earliest change in a group activity.
As the firstswitch, he got everyone to try the new game.