stop light

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

semáforo, luz de tráfico

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.
El coche se detuvo en el semáforo.
Wait for the stop light to turn green before crossing.
Espera a que el semáforo se ponga en verde antes de cruzar.