Terminology - Glossary O

Term Definition

ORTHODOX CHRISTIAN CHURCH – The Church established by our Lord Jesus Christ, propagated by His Apostles and handed down by the true believers by word and example from one generation to another. The Church includes several Patriarchates. Originally there were five Patriarchates ; Constantinople, Alexandria, Antioch, Jerusalem and Rome. In 1054 the Roman Patriarchate separated… Read More


ORTHODOX CHURCH IN AMERICA – (OCA) The Orthodox Church in America is an autocephalous Church with territorial Jurisdiction in the United States of America and the Commonwealth of Canada. Its doctrine, discipline, and worship are those of the One, Holy, Catholic, and Apostolic Church as taught by the Holy Scriptures, Holy Tradition, the Ecumenical and… Read More


ORTHODOX SUNDAY – ( Feast of the Triumph of Orthodoxy, Sunday of Orthodoxy) The first Sunday of Lent which celebrates the restoration of the icons to the churches in 842. It is the triumph of Orthodoxy over iconoclasm and other heresies. Each of the Sundays of Great Lent has its own special theme. The first… Read More


ORTHROS – (Gr. daybreak) The morning service usually called Matins. It consists principally of six psalms (3,37,62,87,102,142), a litany, troparion, kathisma, a Gospel and the Canon.


OUR FATHER – The prayer taught by our Lord to His Apostles (MATT. 6:9-13; LUKE kk:2-4). It is said and sung in nearly all the services. As the model of all prayers, given by our Lord Himself, this prayer is honored, loved and used above all others by all Christians. Lord’s Prayer


OUR LADY – The most usual expression in English, when speaking or writing informally, for the Most Holy Ever-Virgin Mary.


OVERSEER – (an appellation or Title of Jesus) “For ye were as sheep going astray; but are now returned unto the Shepherd and Bishop of your souls.” 1 Pet 2:25