The authority of the person in monarchical countries invested with the right of governing the state in the name of the monarch, during his minority, absence, sickness or other inability.
A ruler, a governor. The term is usually applied to one who governs a regency, or rules in the place of another.
In the canon law, it signifies a master or professor of a college. It sometimes means simply a ruler, director, or superintendent; as, in New York, where the board who have the superintendence of all the colleges, academies and schools, are called the regents of the University of the state of New York.