A coupon is a voucher that provides a discount or special offer on a product or service. It can be used at various retailers or restaurants to save money on purchases. Coupons can be found in newspapers, magazines, or online, and they often have specific terms and conditions, such as expiration dates or minimum purchase requirements. A ticket is a document that grants the holder access to an event, service, or transportation. Tickets are commonly used for concerts, movies, and public transport. They can be physical or digital and usually contain information like the date, time, and location of the event, as well as a unique identification number.