stoplight
US /ˈstɑːp.laɪt/
UK /ˈstɑːp.laɪt/

1.
semáforo, sinal de trânsito
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 stoplight.
O carro parou no semáforo.
•
Wait for the stoplight to turn green before crossing.
Espere o semáforo ficar verde antes de atravessar.