DICT.TW Dictionary Taiwan

 Of·fi·ci·ate v. i. [imp. & p. p. Officiated p. pr. & vb. n. Officiating.]  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.

 officiating
      n : the act of umpiring; "the officiating was excellent" [syn: umpirage,
           officiation, refereeing]