it

pronoun14

1. •
   a thing, an idea or an animal you have already talked about, used instead of a noun

   • Take this book and put it on the shelf.
   • Take each day as it comes.
2. •
   The impersonal pronoun, used without referent as the subject of an impersonal verb or statement (known as the dummy pronoun, dummy it or weather it).

   • It is nearly 10 o’clock.
   • It’s 10:45.
3. •
   The impersonal pronoun, used as a placeholder for a delayed subject, or less commonly, object; known as the dummy pronoun (according to some definitions), anticipatory it 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 subordinating conjunction.

   • It’s not worth talking to you.
   • It is easy to see how she would think that.
4. •
   Refers to someone being identified, often on the phone, but not limited to this situation.

   • It's me, John.
   • Somebody wanted a drink, didn't they? Who was it?
5. •
   All or the end; something after which there is no more.

   • Are there more students in this class, or is this it?
   • That's it—I'm not going to any more candy stores with you.
6. •
   The impersonal pronoun, used without referent, or with unstated but contextually implied referent, in various short idioms or expressions.

   • live it up
   • stick it out
7. •
   A third-person singular personal pronoun used to refer to a baby or child, especially of unknown gender.

   • She took the baby and held it in her arms.
8. •
   (rare) A third-person singular pronoun used to refer to an unspecified person.

   • She had never seen that each human being was different, would react differently, had its own peculiar idiosyncrasies. — 1959
9. •
   (informal, euphemistic) Referring to sexual intercourse or other sexual activity.

   • I caught them doing it.
   • Are you getting it regularly?
10. •
    Referring to a desirable quality or ability, or quality of being successful, fashionable or in vogue.

    • After all these years, she still has it.
11. •
    Sex appeal, especially that which goes beyond physical appearance.

    • 'Tisn't beauty, so to speak, nor good talk necessarily. It's just It. Some women'll stay in a man's memory if they once walked down a street — 1904
12. •
    (offensive) A third-person singular personal pronoun used to refer to an animate referent who is transgender or non-binary.

    • "Oh, don't be silly. I am neither male nor female. I'm a farfel." […] "It. Refer to me as an it." "That seems pretty rude," I said nervously. "Not as rude as calling me a he or a she," it said. — 1993
13. •
    (no longer used) An affectionate third-person singular personal pronoun.

    • "[…] It's my belief that you don't know your own mind." "I don't, dear," said Hulda, nestling to him. "Why, what a puss it is!" cried Sir Philip, kissing her tenderly. — 1890
14. •
    (no longer used) Followed by an omitted and understood relative pronoun: That which; what.

    • In briefe, I am content, and what should providence add more? Surely this is it [= it which] wee call Happinesse, and this doe I enjoy [...]. — 1643

noun9

1. •
   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…
   • Tag, you're it!
2. •
   (informal, euphemistic) Sexual intercourse.

   • OMG, they were doing it in the storage room.
3. •
   (informal) A desirable characteristic, as being fashionable.

   • Man, he's really got it.
   • She's the it girl, at least for this Fall.
4. •
   (informal) Sex appeal.

   • She really has it going on.
5. •
   (informal) Something desirable or suitable.

   • Bro, that shirt is not it.
6. •
   (UK) A game of tag.

   • Let's play it at breaktime.
7. •
   One who is neither a he nor a she; a creature; a dehumanized being.

   • Too often, children become an "it" in their homes and their humanness is devalued. — 1995
8. •
   A biological force that inhabits living beings, according to the vitalist approach of Georg Groddeck.
9. •
   The Id, in Freudian psychology.

adjective1

1. •
   (informal) Most fashionable, popular, or in vogue.

   • Going away for the weekend and feel the need to profile en route? This is the "it" bag. — 2007

determiner1

1. •
   (no longer used) Its.

   • That which groweth of it owne accord of thy haruest, thou shalt not reape, neither gather the grapes of thy Uine vndressed: for it is a yeere of rest vnto the land. — 1611

adjective1

1. •
   Initialism of intrathecal.

noun3

1. •
   Initialism of information technology.

   • Hello, IT. Have you tried turning it off and turning it on again? Ok. Well, are you sure that it's plugged in? — 2006
2. •
   Initialism of inclusive tour.
3. •
   Initialism of intercept-time method.