In some bicameral legislative systems, the upper house or chamber.

Any of several legislative bodies. (In countries which have multiple legislative bodies, the Senate is often the more senior.) / (historical) The council that governed the ancient Roman Republic.

plural of senate

A member, normally elected, in the house or chamber of a legislature called a senate, as, for instance, the legislatures of the United States and Canada.

The title for someone who is elected to be a senator.

plural of senator

Of, by, or pertaining to the Senate of Ancient Rome.

Alternative form of senet (“ancient board game”)

A house in which a senate meets, or a place of public council.

plural of senate-house