What does administrator mean?
The definition of administrator
Ad*min`is*tra”tor, n.
Etym: [L.]

1 One who administers affairs; one who directs, manages, executes, or dispenses, whether in civil, judicial, political, or ecclesiastical affairs; a manager.
2 (Law)
A man who manages or settles the estate of an intestate, or of a testator when there is no competent executor; one to whom the right of administration has been committed by competent authority.