Definitions
1.nounA ruler.
2.nounOne who rules in place of the monarch, especially because the monarch is too young, absent, or disabled.
3.nounA member of a municipal or civic body of governors, especially in certain European cities.
4.nounA member of governing board of a college or university; also a governor of the Smithsonian Institute in Washington DC.
5.nounThe chief executive of a regency
6.adjectiveRuling; governing; regnant.
7.adjectiveExercising vicarious authority.