In corporate finance, a debenture is a medium- to long-term debt instrument used by large companies to borrow money at a fixed rate of interest. The legal term "debenture" originally referred to a document that either creates a debt or acknowledges it, but in some countries the term is now used interchangeably with bond, loan stock or note. A debenture is thus like a certificate of loan or a loan bond evidencing the company's liability to pay a specified amount with interest. Although the money raised by the debentures becomes a part of the company's capital structure, it does not become share capital. Senior debentures get paid before subordinate debentures, and there are varying rates of risk and payoff for these categories. In a bankruptcy, debentures get paid before stock holders are paid.