red light
US /ˌred ˈlaɪt/
UK /ˌred ˈlaɪt/

1.
lampu merah
a signal light that is red, used as a warning or to indicate that a vehicle or pedestrian must stop
:
•
The car stopped at the red light.
Kereta berhenti di lampu merah.
•
Don't cross the street when the red light is on.
Jangan melintas jalan apabila lampu merah menyala.
2.
lampu merah, amaran
a warning or sign of danger or prohibition
:
•
The company's declining sales were a red light for investors.
Penurunan jualan syarikat adalah lampu merah bagi pelabur.
•
His sudden change in behavior was a red light that something was wrong.
Perubahan tingkah lakunya yang tiba-tiba adalah lampu merah bahawa ada sesuatu yang tidak kena.