The words anybody, everybody, somebody, and nobody are pronouns. They take the place of a specific noun. We call them indefinite pronouns because it is not clear exactly which noun is being replaced by these pronouns.
Is anybody here?
I was hoping that somebody could help me.
It looks like nobody is in the building.
Everybody has gone home.
The indefinite pronouns anybody, everybody, somebody, and nobody take the place of a person’s name. Use indefinite pronouns when you don’t know exactly who you are talking about.
▶Now you try it. Use one of these four indefinite pronouns for the blank in this sentence: The room is empty, so _____ is here. Did you figure it out? Good for you!