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.
A document that tells how much money you owe someone is adebenture. If you borrow ten dollars from the neighbor kid's lemonade stand earnings, you'd better at least leave him a debenture.Debenture, pronounced "deh-BEN-chur," looks and sounds like its Latin root, debentur, which means "there are due." A debenture is a receipt or certificate that acknowledges a debt, which you give someone who loans you money. Debenture is also your ability to use credit to get things now that you promise to pay for later.

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