usher

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun One who is employed to escort people to their seats, as in a theater, church, or stadium.
• noun A man who attends a bridal party at a wedding.
• noun One who serves as official doorkeeper, as in a courtroom or legislative chamber.
• noun An official whose duty is to make introductions between unacquainted persons or to precede persons of rank in a procession.
• noun Archaic An assistant teacher in a school.
• intransitive verb To serve as an usher to; escort.
• intransitive verb To lead or conduct: synonym: guide.
• intransitive verb To precede and introduce; inaugurate.
• intransitive verb To serve as an usher.

from The Century Dictionary.

• To act as an usher to; attend on in the manner of an usher; introduce as forerunner or harbinger; forerun; precede; announce: generally followed by in, forth, etc.
• noun An officer or servant who has the care of the door of a court, hall, chamber, or the like; a doorkeeper; hence, one who meets people at the door of a public hall, church, or theater, and escorts them to seats; also, an officer whose business it is to introduce strangers or to walk before a person of rank.
• noun An under-teacher, or assistant to a school-master or principal teacher.
• noun One of certain British geometrid moths. Hybernia leucophearia is the spring usher.

from the GNU version of the Collaborative International Dictionary of English.

• transitive verb To introduce or escort, as an usher, forerunner, or harbinger; to forerun; -- sometimes followed by in or forth.
• noun 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.
• noun An under teacher, or assistant master, in a school.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A person, in a church, cinema etc., who escorts people to their seats.
• noun A male escort at a wedding.
• noun A doorkeeper in a courtroom.
• verb To guide people to their seats.
• verb To accompany or escort (someone).
• verb figuratively To precede; to act as a forerunner or herald.
• verb figuratively, transitive to lead or guide somewhere

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb take (someone) to their seats, as in theaters or auditoriums
• noun an official stationed at the entrance of a courtroom or legislative chamber
• noun Irish prelate who deduced from the Bible that Creation occurred in the year 4004 BC (1581-1656)
• noun someone employed to conduct others