voucher

A voucher is a document, either physical or digital, that gives someone the right to receive goods, services, or a discount, or that shows a payment has been made. It often has a stated value or a specific purpose. In simple terms, it is something you can use to claim value or to support a transaction.

Historically, vouchers were also used in rationing systems, where people exchanged them for limited supplies. Today, they are much more common in business and everyday life. Travel companies often issue them when flights are cancelled or hotels are overbooked, allowing customers to book again later. Gift vouchers are also common, letting people choose what they want from a particular shop or service.

But the term "voucher" can also refer to a document used in accounting or reimbursement. For example, it may show that a service was paid for or support an expense claim. In some places, food vouchers are given to people who need help buying groceries.

So whether it is a gift credit, a travel credit, a discount document, or proof of payment, a voucher represents value connected to a purchase, service, or claim. It is used in many different situations, but the central idea stays the same: it gives access to something valuable or helps confirm a transaction.