<p><strong>Noun</strong></p><ul><li>a person or thing that vouches.</li><li>a document, receipt, stamp, or the like, that gives evidence of an expenditure.</li><li>a form authorizing a disbursement of cash or a credit against a purchase or expense to be made in the future.</li><li>a written authorization.</li><li>a piece of evidence or proof.</li><li>school voucher.</li><li>Early English Law: a person called into court to warrant another's title.</li><li>the act of vouching another person to make good a warranty.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object)</li><li>to pay for, guarantee, or authorize by voucher.</li><li>to prepare a voucher for.</li></ul>