信号灯

信號燈
xìnhàodēng
  1. signal light
  2. car indicator

CEDICT

  1. signal light; car indicator
  2. traffic light

Wiktionary

代替语言作为传达消息命令灯号主要不同颜色间歇指示安全危险正常故障工作情况传达消息常用船舶灯塔道路铁路机场电气设备

重編國語辭典

Examples

信号灯变绿了哟。

The light has turned green.

Source: Tatoeba

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