xìn​hào​dēng

signal light

信号灯 (信號燈) xìn​hào​dēng
signal light noun
a light used to convey information or instructions, such as traffic or railway signals

All vessels must obey the port's signal lights.

indicator noun
a directional signal light on a vehicle used to indicate turning or lane changes

右转信号灯

yòu​zhuǎn shí wàng le xìn​hào​dēng.

He forgot to use his turn signal when turning right.

Frequency

Movie subtitles
1.94 per million appears in 1% of films
Written text
1.77 per million

Sources

Definitions
CC-CEDICT