voucher

A voucher is a document that gives someone permission to get something for free or at a reduced price.

When you hear about vouchers, chances are it's related to shopping. Stores and restaurants often offer vouchers as promotions, which can be printed from their websites or found on flyers. These vouchers usually have a code or a number that needs to be used when making a purchase or booking a service. Sometimes, schools or governments also issue vouchers for things like bus passes or meals at school cafeterias. The idea is that the voucher acts as a ticket, giving you access to something you wouldn't normally get without paying full price.