stop light

US /ˈstɑːp laɪt/
UK /ˈstɑːp laɪt/
"stop light" picture
1.

semaforo

a set of automatically operated colored lights, typically red, yellow, and green, for controlling traffic at road junctions and pedestrian crossings

:
The car stopped at the stop light.
L'auto si è fermata al semaforo.
Wait for the stop light to turn green before crossing.
Aspetta che il semaforo diventi verde prima di attraversare.