stop light
US /ˈstɑːp laɪt/
UK /ˈstɑːp laɪt/

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.