voucher

A voucher is a certificate or document that either allows you to purchase something or proves that you paid for something. A voucher is sometimes valuable.

When you can vouch for someone, you're willing to recommend them and say they're a good person. A voucher does something similar. For many workers, a voucher is a receipt that proves they spent money on something, like travel, which their company will later pay for. A voucher is also a type of coupon that allows you to purchase something for less or no money, even tuition to a school. Both types of vouchers allow you to save money.

Definitions of voucher
1

n someone who vouches for another or for the correctness of a statement

Synonyms:
verifier
Type of:
admirer, booster, champion, friend, protagonist, supporter
a person who backs a politician or a team etc.

n a negotiable certificate that can be detached and redeemed as needed

Synonyms:
coupon
Types:
book token
a gift voucher that can be exchanged for books costing up to an amount given on the voucher
luncheon voucher, meal ticket
coupon redeemable at a restaurant and entitling the holder to a meal
twofer
a coupon that allows the holder to purchase two items (as two tickets to a play) for the price of one
Type of:
commercial document, commercial instrument
a document of or relating to commerce

n a document that serves as evidence of some expenditure

Type of:
document, papers, written document
writing that provides information (especially information of an official nature)

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