promise+to+pay
131debenture — de·ben·ture /di ben chər/ n [Anglo French debentour and Medieval Latin debentura, perhaps from Latin debentur they are owed]: an unsecured bond that is backed by the issuer s general credit rather than a specific lien – called also debenture… …
132instrument — in·stru·ment n 1: a means or implement by which something is achieved, performed, or furthered an instrument of crime 2: a document (as a deed, will, bond, note, certificate of deposit, insurance policy, warrant, or writ) evidencing rights or… …
