(1) A statement in paper, where in there is a signatory ordering a bank to give a third party a specific amount of money. This actually came from the old days when individuals would get from their pockets a “bill of exchange.” (2) A statement that tells an amount that needs to be settled. (3) A money in any currency in a form of paper. (4) A formal proposal such as in congress or senate that should be enacted to be a law. (5) A conventional word to refer to piled documents and cases that is almost forgotten with age.