Source : Webster's Revised Unabridged Dictionary (1913)

Wizard \Wiz"ard\, n. [Probably from wise + -ard.]
   1. A wise man; a sage. [Obs.]

            See how from far upon the eastern road The star-led
            wizards [Magi] haste with odors sweet! --Milton.

   2. One devoted to the black art; a magician; a conjurer; a
      sorcerer; an enchanter.

            The wily wizard must be caught.       --Dryden.

Wizard \Wiz"ard\, a.
   1. Enchanting; charming. --Collins.

   2. Haunted by wizards.

            Where Deva spreads her wizard stream. --Milton.

Source : WordNet®

wizard
     adj : possessing or using or characteristic of or appropriate to
           supernatural powers; "charming incantations"; "magic
           signs that protect against adverse influence"; "a
           magical spell"; "'tis now the very witching time of
           night"- Shakespeare; "wizard wands"; "wizardly powers"
           [syn: {charming}, {magic}, {magical}, {sorcerous}, {witching(a)},
            {wizard(a)}, {wizardly}]

wizard
     n 1: someone who is dazzlingly skilled in any field [syn: {ace},
          {adept}, {champion}, {sensation}, {maven}, {mavin}, {virtuoso},
           {genius}, {hotshot}, {star}, {superstar}, {whiz}, {whizz},
           {wiz}]
     2: one who practices magic or sorcery [syn: {sorcerer}, {magician},
         {necromancer}]

Source : Free On-Line Dictionary of Computing

wizard
     
        1. A person who knows how a complex piece of software or
        hardware works (that is, who {grok}s it); especially someone
        who can find and fix bugs quickly in an emergency.  Someone is
        a {hacker} if he or she has general hacking ability, but is a
        wizard with respect to something only if he or she has
        specific detailed knowledge of that thing.  A good hacker
        could become a wizard for something given the time to study
        it.
     
        2. A person who is permitted to do things forbidden to
        ordinary people; one who has {wheel} privileges on a system.
     
        3. A Unix expert, especially a Unix systems programmer.  This
        usage is well enough established that "Unix Wizard" is a
        recognised job title at some corporations and to most
        headhunters.
     
        See {guru}, {lord high fixer}.  See also {deep magic}, {heavy
        wizardry}, {incantation}, {magic}, {mutter}, {rain dance},
        {voodoo programming}, {wave a dead chicken}.
     
        4. An interactive help utility that guides the user through a
        potentially complex task, such as configuring a {PPP} driver
        to work with a new {modem}.  Wizards are often implemented as
        a sequence of {dialog boxes} which the user can move forward
        and backward through, filling in the details required.  The
        implication is that the expertise of a human wizard in one of
        the above senses is encapsulated in the software wizard,
        allowing the average user to perform expertly.
     
        [{Jargon File}]
     
        (1998-09-07)