Available Definitions:
1) a. - Ruling; governing; regnant.
2) a. - Exercising vicarious authority.
3) a. - One who rules or reigns; a governor; a ruler.
4) a. - Especially, one invested with vicarious authority; one who governs a kingdom in the minority, absence, or disability of the sovereign.
5) a. - One of a governing board; a trustee or overseer; a superintendent; a curator; as, the regents of the Smithsonian Institution.
6) a. - A resident master of arts of less than five years' standing, or a doctor of less than twwo. They were formerly privileged to lecture in the schools.