Source : Webster's Revised Unabridged Dictionary (1913)

Usher \Ush"er\, v. t. [imp. & p. p. {Ushered}; p. pr. & vb. n.
   {Ushering}.]
   To introduce or escort, as an usher, forerunner, or
   harbinger; to forerun; -- sometimes followed by in or forth;
   as, to usher in a stranger; to usher forth the guests; to
   usher a visitor into the room.

         The stars that usher evening rose.       --Milton.

         The Examiner was ushered into the world by a letter,
         setting forth the great genius of the author.
                                                  --Addison.

Usher \Ush"er\, n. [OE. ussher, uschere, OF. ussier, uisser,
   oissier, hussier, huissier, fr. L. ostiarius a doorkeeper,
   fr. ostium a door, entrance, fr. os mouth. See {Oral}, and
   cf. {Ostiary}.]
   1. An officer or servant who has the care of the door of a
      court, hall, chamber, or the like; hence, an officer whose
      business it is to introduce strangers, or to walk before a
      person of rank. Also, one who escorts persons to seats in
      a church, theater, etc. ``The ushers and the squires.''
      --Chaucer.

            These are the ushers of Marcius.      --Shak.

   Note: There are various officers of this kind attached to the
         royal household in England, including the gentleman
         usher of the black rod, who attends in the House of
         Peers during the sessions of Parliament, and twelve or
         more gentlemen ushers. See {Black rod}.

   2. An under teacher, or assistant master, in a school.

Source : WordNet®

Usher
     n 1: Irish prelate who deduced from the Bible that Creation
          occurred in the year 4004 BC (1581-1656) [syn: {Ussher},
           {James Ussher}, {James Usher}]
     2: an official doorkeeper as in a courtroom or legislative
        chamber [syn: {doorkeeper}]
     3: someone employed to conduct others [syn: {guide}]