debt instrumentglossary / DEBT INSTRUMENT debt instrument. A written promise to repay a debt, such as a promissory note, bill, bond, or commercial paper. [Cases: Bills and Notes 28. C.J.S. Bills and Notes; Letters of Credit§§ 2–3, 7–9, 12, 22, 75.] 词条贡献者 法律翻译Julie,毕业于一所培养最顶级翻译人才的语言学院,专注翻译各类与欧洲通信法规有关的法律文件。