especially a member of a legislative body.
especially not any individual member of a legislative body but the abstracted author of a statute or statutes relevant for the principles of interpretation.
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.
A member of the ruler’s council or governing council in general, a leading statesman.
A member of the ancient Roman Senate.
A member of a governing council in other states in the ancient world.