[W/K] :: officiate

  Officiate \Of*fi"ci*ate\, v. i. [imp. & p. p. Officiated; p.
     pr. & vb. n. Officiating.] [LL. officiare. See Office.]
     To act as an officer in performing a duty; to transact the
     business of an office or public trust; to conduct a public
     ceremony or service. --Bp. Stillingfleet.
     [1913 Webster]

  Officiate \Of*fi"ci*ate\, v. t.
     To discharge, perform, or supply, as an official duty or
     function. [Obs.]
     [1913 Webster]
  
           Merely to officiate light
           Round this opacous earth.                --Milton.
     [1913 Webster]

  officiate
       v 1: act in an official capacity in a ceremony or religious
            ritual, such as a wedding; "Who officiated at your
            wedding?"
       2: perform duties attached to a particular office or place or
          function; "His wife officiated as his private secretary"
          [syn: function]

  43 Moby Thesaurus words for "officiate":
     act, act as, adjudicate, administer, administer the Eucharist,
     administrate, anoint, arbitrate, chair, chairman, chrism, conduct,
     confirm, direct, do duty, function, head up, hear, hold court,
     hold the scales, impose, judge, lay hands on, lead, manage,
     mediate, minister, moderate, occupy the chair, oversee,
     perform a rite, perform as, perform service, preside, preside over,
     referee, run, serve, sit in judgment, superintend, supervise, try,
     umpire