Check-out refers to the process of completing a transaction or finalizing a purchase, typically at a retail store or online shopping platform. It involves the customer reviewing and confirming their selected items, providing payment, and receiving a receipt or confirmation of the transaction. This term can also be used to describe the act of leaving a hotel or rental property after settling any outstanding charges. In a broader sense, check-out can also refer to the act of departing or leaving a place or situation.