Administrator

noun

1. One who administers, especially one who works as a manager in a business, government agency, or school.
2. One appointed to administer an estate.
3. One who administers; one who directs or manages affairs of any kind: sometimes used as a title of executive office.
4. In law: One who, by virtue of a commission from a probate, orphans', or surrogate's court, or, in England, from the probate, divorce, and admiralty division of the High Court of Justice, has charge of the goods and chattels of one dying without a will. In some jurisdictions his power is extended to real property. Often contracted to admr.
5. In Scots law, a tutor, curator, or guardian, having the care of one who is incapable of acting for himself.