Administrator

Administrator ( colloquially Admin) stands for:

Administrator (role) in computer systems, a user with elevated privileges
Root account, administrator account, the principal account of an operating system
System administrator, an IT professional for the care of computer systems and computer networks
Administrator (Evangelical Church ), the ruler of Protestant spiritual principalities in the early modern period
Administrator (Catholic Church ), Apostolic Administrator or diocesan administrator
Administrator of the church Utraquist see: List of administrators in both kinds Church (1431-1639)
The second highest position in the hierarchy of an Austrian school, see vice-principal
The representative or guardian of a minor ruler, see regency
The head of a larger commercial farm, see farm