A bill is a formal or public writing or declaration of one’s claim against another. A bill may also be an equitable pleading of a claim in a court of equity. At early common law, a bill in equity was analogous to a declaration in law.
A bill may also be a statement indicating that one owes a certain sum of money to another; an invoice or itemized list of charges.
[Last updated in June of 2021 by the Wex Definitions Team]