act

n.Something done intentionally; an accomplishment achieved, usually, over a period of time; an action2.Legislation that has been made law, especially a statute.The engrossed version of a bill that has been passed by one chamber.DiplomaticsA conscious exercise of will by an individual with an intent to create, maintain, modify, or extinguish a situation.

Citations

NARA 1989b [act3] 1. As used by Congress, a bill that has been passed by one House and engrossed. – 2. As commonly used, a bill that has been passed by both Houses of Congress, enrolled, and either signed by the President or passed over his veto.