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}]
     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: WordNet® 2.0

wizard n. 1. Transitively, a person who knows how a complex piece of
   software or hardware works (that is, who {grok}s it); esp. 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. The term `wizard' is also used intransitively of someone
   who has extremely high-level hacking or problem-solving ability. 3. A
   person who is permitted to do things forbidden to ordinary people; one
   who has {wheel} privileges on a system. 4. A Unix expert, esp. a Unix
   systems programmer. This usage is well enough established that `Unix
   Wizard' is a recognized 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}.


Source: The Jargon File