Understanding 信号 (xìnhào)
信号 primarily means "signal" and is used in various contexts such as telecommunications, traffic control, and nonverbal communication. It refers to any sign or indication that conveys information or instructions.
Common Uses
- Mobile phone or radio signals: 手机信号 (mobile phone signal)
- Traffic signals: 红绿灯信号 (traffic light signals)
- Nonverbal signals: 手势信号 (hand signals)
Collocations and Patterns
- 没有信号 (no signal): often used when a device cannot connect.
- 发出信号 (send a signal): to give a sign or indication.
- 信号灯 (signal light): traffic or warning lights.
Usage Notes
When using 信号, the context usually clarifies whether it refers to electronic signals, traffic signals, or other types of signs. It is a neutral term and can be used in both formal and informal situations. Avoid confusing 信号 with 号码 (number) which relates to numerical identifiers rather than signals.
Summary
信号 is a versatile word essential for discussing communication, technology, and instructions. Recognizing its collocations helps learners use it naturally in conversation.