check out

To confirm and pay for goods and services at a facility (e.g.: supermarket, online store, hotel) when leaving.

“Be sure to check out of the hotel before noon.”

To withdraw (an item), as from a library, and have the withdrawal recorded.

“He checked his favorite mystery out for the twenty-third time.”

To record (someone) as leaving the premises or as taking something therefrom, as from a library or shop.

“The desk clerk checked out the family that had been staying in room 322.”

To examine, inspect, look at closely, ogle; to investigate; to gather information so as to make a decision.

“Check it out! Best prices in town.”

To obtain source code from a repository.

To become uninterested in an activity and cease to participate in more than a perfunctory manner; to become uncooperative.

To become catatonic or otherwise nonresponsive.

To leave in a hurry.

(by extension) To die.

To prove (after an investigation) to be the case, or to be in order.

“The first two leads check out; I'll assume the third one is also valid.”