回信息

You can use it as a verb-object phrase. If you are busy, you might say 我在忙，等一下回信息. You can also put the person you are replying to in the middle. For example, 回他信息 means 'reply to his message.' It is flexible and fits into almost any sentence structure. Don't overthink the grammar; just treat it like a single action.

Use this whenever digital text is involved. It is perfect for WeChat, SMS, or even dating apps. If you are in a meeting and your phone buzzes, this is your excuse. If you are out with friends and someone is ignoring the group to look at their phone, they are likely 回信息. It is a very active, immediate phrase.

Do not use this for physical letters or formal emails. For emails, 回邮件 is the correct term. Also, if you are actually speaking on the phone, use 回电话. Using 回信息 implies fingers on a screen or keyboard. Using it for a face-to-face reply sounds a bit robotic and strange. Stick to the digital world for this one.

In China, WeChat is the center of the universe. Because of this, 回信息 is a constant part of life. There is a specific social anxiety around 'ghosting' or not replying. If you take too long, you might need to apologize for 回晚了 (replying late). Fast replies are often seen as a sign of respect or deep friendship. It is the heartbeat of modern Chinese social etiquette.

You will often hear 回消息 instead of 回信息. They are almost identical in meaning. 信息 feels slightly more standard, while 消息 feels a bit more like 'news' or 'word.' In very casual slang, some people just say 回我 (reply to me). But 回信息 remains the most versatile version for any situation.