What term is used for passengers boarding the aircraft?

The term "enplane" specifically refers to the process of passengers boarding an aircraft. It is derived from the combination of "en," meaning to go into, and "plane," referring to the airplane itself. This term captures the action of passengers entering the aircraft and is commonly used in aviation terminology to distinguish it from other related processes.

In contrast, "disembark" pertains to the process of passengers leaving the aircraft, while "boarding call" refers to the announcement made to inform passengers that it’s time to board. "Check-In" involves the procedures that take place before boarding, where passengers confirm their presence and receive boarding passes, but it does not pertain to the actual act of getting onto the plane. Thus, "enplane" is the most accurate term when discussing the boarding phase of air travel.