it

/ɪt/, /ət/ pronoun

Definition

› the thing or animal being spoken about, that has already been mentioned: I can’t find the newspaper. Do you know where it is? Someone is at the door. Find out who it is. › It is sometimes used to introduce a statement that does not involve a particular event or person: It’s supposed to rain tomorrow.

(Definition of it pronoun from the Cambridge Academic Content Dictionary © Cambridge University Press)