How do you say hi in standard Chinese?

The most common way to say "hi" in standard Chinese is 你好 (nǐ hǎo). This is a very general greeting that can be used in most situations.

Here are some other ways to say "hi" in Chinese, depending on the context:

Formal:

* 您好 (nín hǎo) - This is a more formal greeting used for elders, superiors, or people you don't know well.

* 早上好 (zǎoshang hǎo) - "Good morning"

* 下午好 (xiàwǔ hǎo) - "Good afternoon"

* 晚上好 (wǎnshang hǎo) - "Good evening"

Informal:

* 嗨 (hāi) - Similar to "hey" in English

* 你好吗 (nǐ hǎo ma) - "How are you?"

* 你好啊 (nǐ hǎo a) - A more casual way to say "hi"

* 好久不见 (hǎojiǔ bù jiàn) - "Long time no see"

The best way to choose the right greeting depends on the situation and your relationship with the person you are talking to.