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

1.
红绿灯, 交通灯
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.
汽车在红绿灯处停了下来。
•
Wait for the stoplight to turn green before crossing.
等红绿灯变绿再过马路。