A coupon is a piece of printed paper which allows you to pay less money than usual for a product, or to get it free.
近义词
voucher
双语例句
例：
a money-saving coupon.
一张省钱的优惠券。
2.?[C 可数名词] （报纸、杂志附的）传单
A coupon is a small form, for example, in a newspaper or magazine, which you send off to ask for information, to order something, or to enter a competition.
双语例句
例：
Mail this coupon with your cheque or postal order.