A person responsible for managing and overseeing the operations and affairs of an organization, institution, or governmental unit. The hospital administrator approved the new budget.
A person who installs, configures, and maintains computer systems or networks; a system administrator. The network administrator was called in to fix the server issues.
In law, a person legally appointed by a court to manage and distribute the estate of someone who has died without leaving a will. The court named her as the administrator of her uncle's estate.