postal order

(Brit) (US `money order) official piece of paper bought from a post office, representing a certain sum of money that can be posted to a specified person who then can exchange it for that sum 邮政汇票.

possibly, possum, post, post office, post-, post-bag, post-box (US `mailbox), post-date, post-free, post-haste, post-industrial, post-mortem, post-office, post-paid, post-town, post-war, postage, postage stamp, postal, postal code, postcard, poste restante, poster, poster paint (also `poster colour), posterior, posterity, postern, postgraduate, posthumous, posthumously, postilion (also posttillion), posting, postman, postmark, postmaster, Postmaster General, postnatal, postpone, postponement, postprandial,