traffic light

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