A bill can refer to the horny projecting mouth of a bird. For example: "The duck used its bill to catch food."
It can also mean a brim that projects to the front of a cap or hat. Example: "He pulled down the bill of his cap to shield his eyes from the sun."
In woodworking, a bill might refer to a long-handled saw with a curved blade. Example: "He used a bill to prune branches off of the tree."
A bill can be a list of particulars, like a playbill (a program for a theater show) or a bill of fare (a menu). Example: "I checked the playbill to see who was performing."
It can also refer to a sign posted in a public place as an advertisement. Example: "The poster advertised the coming attractions."
A bill can mean a piece of paper money, especially one issued by a central bank. Example: "He peeled off five one-thousand-zloty notes."
It can represent an itemized statement of money owed for goods or services. Example: "He paid his bill and left the restaurant."
A bill may refer to a draft of a statute before it becomes law. Example: "They held a public hearing on the bill."