1. (超市的)收款处，收银台
In a supermarket, a checkout is a counter where you pay for things you are buying.

1. the act of inspecting or verifying

e.g. they made a check of their equipment
the pilot ran through the check-out procedure

Synonym: checkcheck-out procedure

2. a counter in a supermarket where you pay for your purchases

Synonym: checkout counter

3. the latest time for vacating a hotel room

e.g. the checkout here is 12 noon

Synonym: checkout time