发出
How to Understand
发出 means 'to emit' or 'to send out.' It refers to the action of producing or releasing something, such as a sound, light, or message. It is often used in contexts involving transmission or output.
The character 发 (fā) originally meant 'to grow' or 'to develop,' and later came to mean 'to send' or 'to emit.' The character 出 (chū) means 'to go out' or 'to emerge.' Together, they convey the idea of something being sent or released outward.
发出 is commonly used in both literal and figurative contexts. For example, it can describe a sound being emitted from a source, or a statement being released by an organization. In modern usage, it is also found in phrases like 发出通知 (fā chū zhīnào) meaning 'to issue a notice' or 发出信号 (fā chū xìnhào) meaning 'to send a signal.'