postcode/'pəʊstkəʊd $ 'poʊstkoʊd/

n. a group of letters and numbers used as part of an address

n.〈英〉[C] 邮政编码：The postcode makes the mail travel more efficiently and more quickly. 邮政编码使邮件流转更有效，更快捷。

构词post + code

用法美语用zip code。