公务舱

business class (airplane travel)

public / collectively owned / common / international (e.g. high seas, metric system, calendar) / make public / fair / just / Duke, highest of five orders of nobility 五等爵位[wu3 deng3 jue2 wei4] / honorable (gentlemen) / father-in-law / male (animal)

official business

affair / business / matter / to be engaged in / to attend to / by all means

cabin / the hold of a ship or airplane