1. 保证人，担保者
2. 证件，证书
3. 收据，收条
4. 证人
5. 凭证，凭单
6. 证明人，证明者
7. 教育补助金券
8. 传票
9. 代币券， 代金券
10. 票券，可代替现金的票证
11. 优惠购货券

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

2. a document that serves as evidence of some expenditure

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

1.代金券;票券
Avoucher 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 avoucher 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

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).