Scrip is a term used to describe any form of negotiable instrument or certificate that represents a right, title or interest in something. In finance and accounting, it often refers to shares of stock or other securities that are traded on an exchange. It can also refer to physical currency, such as paper money or coins, which is used as a medium of exchange. Scrip is sometimes used interchangeably with the term "script," although script typically refers more specifically to prescription medication.