noun / verb
switch
SWITCH/swˈɪtʃ/
A change of route or operating state.
The toggle allows a switch between on and off.

Etymology
The control sense developed through railway devices that diverted movement from one track to another, then electrical devices that redirected current. Its connection to the older meaning “slender stick” is uncertain.
In context
there's the switch so you got left turn you got right turn off and then you got your horn
More examples
- The switch to electric buses reduces noise downtown.
- The railroad switch directs the train onto a different track.
- A network switch connects the computers in our office.
- The phone switches to silent mode during meetings.
Forms
switch · switches · switched · switching
switchover noun — a change to another system or method