A voucher is a document or ticket that serves as proof of payment or entitlement to a specific product, service, or discount. It is typically issued by a company or organization and can be redeemed for its stated value or benefit. Vouchers are often used as a form of promotion or incentive, allowing individuals to obtain goods or services at a reduced cost or for free. They can also be given as a gift or reward, providing the recipient with the opportunity to choose their desired item or experience. Vouchers can come in various forms, such as physical cards, digital codes, or printable coupons, and are commonly used in retail, hospitality, and travel industries. They offer a convenient and flexible way to save money or treat oneself, making them a popular choice among consumers.