voucher
🇺🇸
/ˈvaʊtʃər/
🇬🇧
/ˈvaʊtʃə(r)/
A paper or digital code that can be used like money to pay for something or get a discount.
I used a voucher to get $10 off my meal at the restaurant.
我在餐厅用餐时使用了一张优惠券,获得了10美元的折扣。