CHECKOUT
check, checkout, check-out procedure
(noun) the act of inspecting or verifying; “they made a check of their equipment”; “the pilot ran through the check-out procedure”
checkout, checkout counter
(noun) a counter in a supermarket where you pay for your purchases
checkout, checkout time
(noun) the latest time for vacating a hotel room; “the checkout here is 12 noon”
Source: WordNet® 3.1
Etymology
Noun
checkout (plural checkouts)
The process of checking out of a hotel, or the latest time to vacate a room in one.
The process of checking out items at a supermarket or library.
The place in a supermarket where this is done.
A test to see if some device is functioning properly.
An inspection or investigation.
Source: Wiktionary