What term is used to describe a proposed law?

The term "bill" is used to describe a proposed law in a legislative context. A bill is an initial draft of legislation that is introduced for debate and approval within a legislature. Once a bill is passed through the necessary legislative processes and receives approval, it can become an act, which signifies that it has been formally enacted into law.

An ordinance, while also a form of law, typically refers to a local law or regulation enacted by a municipal government and is not the general term for a proposed law. The term "act" specifically refers to legislation that has been passed and is in effect, rather than one that is still being debated. A resolution can signify a formal statement or opinion passed by a legislative body but does not put forth a proposed law like a bill does. Thus, the definition and role of a bill clearly align with the concept of a proposed law, making it the correct choice.