Oxford Dictionary English money order noun noun BrE BrE//ˈmʌni ɔːdə(r)// ; NAmE NAmE//ˈmʌni ɔːrdər// (especially North American English) (British English also postal order) Add to my wordlistjump to other resultsan official document that you can buy at a bank or a post office and send to somebody so that they can exchange it for moneySee money order in the Oxford Advanced American DictionaryCheck pronunciation: money order oxfordlearnersdictionaries.com