IPA: /ɪmˈpleɪn/
KK: /ɪmˈpleɪn/
To board an aircraft or to get on a plane.
Passengers will emplane at Gate 5 for the flight to New York.
Past: emplaned
Past Participle: emplaned
Emplane is formed from "em-" (meaning to put into) and "plane" (from Latin "planus", meaning flat or level). The word means to put into a plane, typically referring to boarding an aircraft.
Think of 'putting into' ('em-') a 'flat surface' ('plane') — that's how you remember that 'emplane' means to board an aircraft.