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administrator

[ad-min-uh-strey-ter]
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noun
  1. a person who manages or has a talent for managing.
  2. Law. a person appointed by a court to take charge of the estate of a decedent, but not appointed in the decedent's will.
  3. Also called Informal, admin. Computers.
    1. a person who manages and supports a computer system or network, as in a business or other organization: the company’s system administrator; a database administrator.Compare system operator.
    2. a person who determines the site policies, appoints moderators, and manages the technical operation of an Internet message board or other interactive website: a forum administrator.
    3. a user account on a home computer accessible only by the user who manages the computer system.Compare root1(def 11b).
    4. a user who has access to this user account.
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Origin of administrator

1400–50; late Middle English < Latin administrātor, equivalent to administrā(re) (see administer) + -tor -tor
Related formsad·min·is·tra·tor·ship, nounpre·ad·min·is·tra·tor, nounsub·ad·min·is·tra·tor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for administrator

administrator

noun
  1. a person who administers the affairs of an organization, official body, etc
  2. property law a person authorized to manage an estate, esp when the owner has died intestate or without having appointed executors
  3. a person who manages a computer system
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Derived Formsadministratrix, fem n
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for administrator

n.

mid-15c., from Middle French administrateur or directly from Latin administrator "a manager, conductor," agent noun from past participle stem of administrare (see administer). Estate sense is earliest. For ending, see -er.

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Online Etymology Dictionary, © 2010 Douglas Harper