who

"Who" is a small word with a big job. It helps you ask about a person or name the person you mean. Think of it as a simple way to point to people in language. You use "who" when you are talking about people, not things. "What" is usually for things, but "who" is for people.

For example: "*Who ate the last cookie?" or "Who is that singer?" It can also connect ideas, like in the sentence, "The woman who helped me was very kind." Sometimes it is even used in a short expression like "Who* knew?!" to mean "I had no idea!"

"Who" is a versatile little word. It is mainly used as an interrogative pronoun, which means it helps ask questions. Its main job is to identify or ask about people.

At its most basic, "who" asks for information about a person: "*Who* is coming to the party?" It is different from "what," which is usually used for things, and from "whom," which is a more formal form used as an object in some kinds of English.

But "who" is not just for direct questions. It also works as a relative pronoun, connecting parts of a sentence and giving more information about a person. For example: "The artist *who* painted this picture is famous." Here, "who" introduces a clause that describes the artist.

You will often see it in phrases like "*Who cares?" to show indifference, or in surprised comments like "Who would have thought?" It can also appear in rhetorical questions such as "Who* doesn't love pizza?" where no real answer is expected.

So, whether you are asking about a person, adding detail to a sentence, or reacting with surprise, "who" is an essential word for talking about people. It is a basic but important part of everyday English.