A money changer is a window or store at an airport that exchanges the currency of one country for that of another at exchange rates on behalf of those who leave or arrive at the country for a commission.
空港などにおいて、主に入国者および出国者を対象に、2国間の通貨を手数料を徴収して、為替相場に応じて外貨両替を行う窓口または店舗を両替商と呼ぶ。