senate

noun

1. In some bicameral legislative systems, the upper house or chamber.
2. A group of experienced, respected, wise individuals serving as decision makers or advisors in a political system or in institutional governance, as in a university, and traditionally of advanced age.

   “Before the Tyrant's throne All night his aged Senate sate.”

3. In Germany, the executive branch of government in the city states of Berlin, Bremen, and Hamburg; the governments of cities that were part of the Hanseatic League; and the bench in a higher appellate court.

name

1. Any of several legislative bodies. (In countries which have multiple legislative bodies, the Senate is often the more senior.)
2. (historical)The council that governed the ancient Roman Republic.
3. (Canada)The Senate of Canada; the upper house of the Canadian parliament; "the Senate".
4. (US)The United States Senate.
5. (US)The upper legislative body of many of the states of the United States.
6. (Philippines)The upper house of the Philippine Congress.