Oxford Dictionary English promissory note nounnoun BrE BrE//ˈprɒmɪsəri nəʊt// ; NAmE NAmE//ˈprɑːmɪsɔːri noʊt// (specialist) Add to my wordlistjump to other resultsa signed document containing a promise to pay a stated amount of money before a particular dateSee promissory note in the Oxford Advanced American DictionaryCheck pronunciation: promissory note oxfordlearnersdictionaries.com