It

1. One who is neither a he nor a she; a creature; a dehumanized being.
2. The person who chases and tries to catch the other players in the playground game of tag.

   In the next game, Adam and Tom will be it…

3. The game of tag.

   Let's play it at breaktime.

4. Sex appeal, especially that which goes beyond beauty.
5. Sexual activity.

   caught them doing it

6. A biological force that inhabits living beings, according to the vitalist approach of Georg Groddeck.

adjective

Most fashionable.

1. The third-person singular personal pronoun that is normally used to refer to an inanimate object or abstract entity, also often used to refer to animals.

   I heard the sound of the school bus - it was early today.

2. A third-person singular personal pronoun used to refer to a child, especially of unknown gender.

   She took the baby and held it in her arms.

3. Used to refer to someone being identified, often on the phone, but not limited to this situation.

   Is it her?

4. The impersonal pronoun, used without referent as the subject of an impersonal verb or statement. (known as the dummy pronoun or weather it)

   It is nearly 10 o’clock.

5. The impersonal pronoun, used without referent in various short idioms.
6. The impersonal pronoun, used as a placeholder for a delayed subject, or less commonly, object; known as the dummy pronoun or, more formally in linguistics, a syntactic expletive. The delayed subject is commonly a to-infinitive, a gerund, or a noun clause introduced by a .

   He saw to it that everyone would vote for him. (with the noun clause introduced by that)

7. All or the end; something after which there is no more.

   Are there more students in this class, or is this it?

8. A third-person singular personal pronoun used to refer to an animate referent who is transgender or is neither female nor male.
9. Followed by an omitted and understood relative pronoun: That which; what.

proper noun

A large peninsula in Southern Europe protruding into the Mediterranean Sea and shaped like a boot. The mountain range of Apennines runs across it from north to south. Occupied almost entirely by Italy.

proper noun

A country in southern Europe. Official name: Italian Republic.

proper noun

Abbreviation of Italian. (language)