United States Senate, US Senate, Senate - the upper house of the United States Congress

House of Representatives, U.S. House, U.S. House of Representatives, United States House of Representatives, US House, US House of Representatives - the lower legislative house of the United States Congress

law-makers, legislative assembly, legislature, general assembly - persons who make or amend or repeal laws

legislative branch - the branch of the United States government that has the power of legislating