's

-'s1 short form

1. ) a way of saying or writing is and has. This is not often used in formal writing:

She's in the kitchen.

John's gone out.

2. ) the usual way of saying or writing us when you use it with let to make a suggestion:

Let's not tell him now let's give him a surprise.

3. ) SPOKEN a way of saying does in some questions, that many people consider to be incorrect:

How's that look?