名词凭证; 收据; 证件; 证人

1. 折价券：二是妇女、婴儿与儿童的补充食物计划,这是一个针对低收入家庭儿童、孕妇以及育婴期的妇女而设计,目的在于补充妇女、儿童与婴儿的营养所需,通常是用折价券(voucher)提供免费食品,如牛奶、果汁、乳酪、豆类、谷类等营养必需品.

2. 传票：所谓会计分录(entry)就是企业活动的记录,例如,若某产品标准成本10元,月初用现金100元买进10个产品就会记2个分录:存货增加100元、现金减少100元,这2个分录会记在同一份文件上,称为传票(voucher).

1. 代金券;票券
A voucher is a ticket or piece of paper that can be used instead of money to pay for something.

e.g. The winners will each receive a voucher for a pair of cinema tickets.
获胜者每人将会获得两张电影票的代金券。
e.g. ...gift vouchers.
礼券

noun

1. a negotiable certificate that can be detached and redeemed as needed

Synonym: coupon

2. a document that serves as evidence of some expenditure

3. someone who vouches for another or for the correctness of a statement

Synonym: verifier