"What" in English is used as an interrogative pronoun to ask for information about something. It can be used to ask for the identity, nature, or value of something, or to request an explanation or opinion. For example, you might say "What is your name?" to ask someone their name, or "What do you think?" to ask for their opinion.

The word "what" comes from the Old English word "hwæt", which is a combination of the pronoun "hwæ" (meaning "who, what") and the adverbial suffix "-t" (meaning "to a great degree, very"). It has been used in English for many centuries, and has remained largely unchanged in spelling and pronunciation over time.

Here are some examples of "what" in use:

"What time is it?" (Asking for the time)

"What do you want?" (Asking for someone's desire or request)

"What is your favorite color?" (Asking for someone's preference)

"What is the capital of France?" (Asking for information)

In Chinese, "what" is translated as "什么" (shén me). It is made up of the characters "什" (shén) and "么" (me), which together mean "what, which, how".