A bill can be one of:

• paper documents used as currency (notes in British English): see Banknote.
• proposed laws put before a legislature. See Act of Parliament, Act of Congress, Act of the Oireachtas, bill (proposed law)
• another name for the beak of a bird.
• a type of weapon: a halberd, only on a 5 foot pole. See bill (weapon)
• a document requesting payment for goods and services already rendered. See Bill (payment)
• bill of lading
• waybill
• A character in Quentin Tarantino's Kill Bill saga. See Bill (Kill Bill).
• A shortened form of the English first name William
• A poster. Also see Billboard (advertising)

The Buffalo Bills are an American football team in the NFL.