Negotiable papers refer to documents that can be transferred from one person to another by endorsement and delivery. These papers include marketable securities, such as bonds, stocks, and bills of exchange. They are also called negotiable instruments, commercial papers, and tradable papers. Other synonyms for negotiable papers include promissory notes, bankers' acceptances, warrants, and letters of credit. These papers represent a monetary value that can be traded or exchanged for cash or other goods. Negotiable papers are important tools in commercial transactions, as they allow for quick payment and exchange of funds without the need for physical cash.