traffic light
US /ˈtræf.ɪk ˌlaɪt/
UK /ˈtræf.ɪk ˌlaɪt/

1.
semáforo, luz de tráfico
a set of automatically operated colored lights, typically red, yellow, and green, for controlling the flow of traffic at road junctions or pedestrian crossings
:
•
The car stopped at the traffic light.
El coche se detuvo en el semáforo.
•
Turn left at the next traffic light.
Gira a la izquierda en el siguiente semáforo.