What is what does senator means?

A senator is a member of a legislative body, typically the upper house of a bicameral legislative assembly. In the United States, the Senate is comprised of 100 voting members, two from each state, who are elected to six-year terms. Senators have the power to propose and introduce legislation, debate and vote on bills, and represent their constituents in the federal government. They also have the power to confirm presidential nominations for federal judges, ambassadors, and executive branch officials. Senators play a significant role in shaping the country's laws and policies.