Used in questions to ask for particular information about somebody/something. You use what in questions when you ask for specific information about something that you do. We can use what to ask for information about things and actions:.
We can use what in informal situations to ask someone to. Which thing or which particular one of many: Guess what is often used to tell someone that you have surprising news.
A) used to ask someone to repeat something they have just said because you did not hear it properly ‘could you turn the music down a bit?’ ‘what?’. B) used when you have heard someone calling to you. Interrogative pronoun, old english hwæt, referring to things in abstraction;
