Bank bill. This term is an abbreviation of bankable bill; it means a bill of exchange or draft that is
of such good quality that a bank will readily discount (buy) it. Accordingly, it also applies to a bill
when it bears the indorsement of a bank. The usual manner in which a bank becomes an indorser
of a bill is in selling a bill which it holds instead of retaining it until maturity. The reason for selling is
that the bank desires cash or that it can make a satisfactory profit by disposing of it. The bill brings
a better price (the discount is less) with the bank's indorsement than it would bring without the
bank's indorsement.

The term bank bill or bank's bill also applies to a bill of exchange or draft issued by a bank and
payable by a correspondent of the bank.

The term bank bill also is often used in place of bank note (money).
Bank book. The book held by a depositor in a bank in which are entered the sums placed to his
credit and, when a balance is struck at intervals, the amount of the debits.