- 信号灯 xìnhàodēng signal lighta light used to convey information or instructions, such as traffic or railway signals
- 电信号 diànxìnhào electrical signal
- 光信号 guāngxìnhào optical signal
- 后信号灯 hòuxìnhàodēng rear indicatorcar rear indicator
- 数位信号 shùwèixìnhào digital signal
- 数字信号 shùzìxìnhào digital signal
- 模拟信号 mónǐxìnhào analog signal
- 电话信号 diànhuàxìnhào telephone signal
- 语音信号 yǔyīnxìnhào voice signal
- 转向信号 zhuǎnxiàngxìnhào turn signala light or indicator on a vehicle that flashes to show the driver's intention to turn or change lanes
- 信号台 xìnhàotái signal station
- 信号处理 xìnhàochǔlǐ signal processingThe analysis, modification, and synthesis of signals such as sound, images, and sensor data.
- 前信号灯 qiánxìnhàodēng front indicatorcar front indicator light
