a method of making small payments to a person in another country:
• Payment can be by cheque, cash or international money order.
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international money order UK US noun [C]
► MONEY, BANKING a way of making a small payment to someone in another country: »
An international money order is a secure method of sending money via the mail service to other countries.
by international money order »Overseas customers are advised to pay by international money order.
Financial and business terms. 2012.