What does the term 'Deplane' mean?

The term 'Deplane' specifically refers to the act of passengers leaving the aircraft after a flight has landed. This term is commonly used in the airline and aviation industry to describe the disembarking process, which happens once the aircraft comes to a complete stop and the doors are opened for passengers to exit. Understanding this term is essential to grasp the various phases of air travel, from boarding to deplaning, as it clearly delineates the actions occurring at the end of a flight.

In contrast, the other options describe different aspects of air travel. Boarding refers to passengers getting on the aircraft, which is the opposite of deplaning. Taxiing is the movement of the aircraft on the runway before takeoff or after landing, and checking in involves passengers registering for their flight prior to boarding. Each of these actions is integral to the travel process, but they do not relate to the specific movement of passengers exiting the aircraft as encapsulated by the term 'deplane.'