discount, 在法律文件中通常具有2层含义：

1. 折扣，如discount price折扣价

2. 贴现，如banker's discount银行贴现

1例句一

The invoice shall be subject to the usual trade discounts allowed by the Consignor.

发票须按照发货人所给予的通常批发折扣开立。

2例句二

The Buyer shall lodge a 90-day note in Bank of China, Taiyuan Branch for discount.

买方将把一张90天的期票提交中国银行太原分行贴现。