to be found to be true or acceptable after being examined

Guests should check out of their rooms by noon.

I'm sorry, they aren't here. They checked out this morning.

to find out if something is correct, or if somebody is acceptable

The police are checking out his alibi.

We'll have to check him out before we employ him.

to look at or examine a person or thing that seems interesting or attractive

Check out the prices at our new store!

to borrow something from an official place, for example a book from a library

The book has been checked out in your name.

LEARNit Dictionary