Altar
The sacred space behind the iconostasis where the Eucharist is prepared and offered. Only clergy and designated altar servers enter this area. See Iconostasis and Eucharist.
Altar Servers
Lay people who assist the priest during services by carrying candles, preparing the censer, and helping in the altar.
Antidoron
Blessed bread offered to everyone at the end of the Divine Liturgy as a sign of fellowship and love. It is not Communion.
Apolytikion
A short hymn that summarizes the spiritual meaning of a feast day or saint being commemorated. It is usually sung near the end of Vespers and at other services.
Bishop
A successor to the Apostles who has the fullness of the priesthood. Bishops oversee dioceses, ordain clergy, and preserve unity and doctrine in the Church.
Catechumen
A person formally preparing for entry into the Orthodox Church through prayer, instruction, and participation in services.
Chanters
Individuals who sing the hymns and responses during Orthodox services, often from the front side areas of the church called the kliros.
Chrismation
The sacrament of anointing with holy oil, usually following Baptism, marking the gift of the Holy Spirit and entrance into the Church.
Creed
A statement of Christian belief, most commonly the Nicene Creed, which is recited during the Divine Liturgy. It affirms the Trinity, the Incarnation, and key doctrines of the faith.
Communion
See Eucharist. In Orthodox tradition, Holy Communion is the true Body and Blood of Christ, given to the faithful during the Divine Liturgy.
Deacon
An ordained clergy who assists the priest and bishop in services, reading the Gospel, leading litanies, and serving at the altar.
Divine Liturgy
The central worship service of the Orthodox Church, where the Eucharist (Holy Communion) is celebrated.
Epistles
Letters found in the New Testament, written by the Apostles to early Christian communities. Portions are read during the Liturgy.
Eucharist
From the Greek word meaning “thanksgiving.” The central sacrament of the Orthodox Church, in which bread and wine become the Body and Blood of Christ and are received by the faithful as a means of union with God.
Feast Day
A special day in the Church calendar commemorating events in the life of Christ, the Theotokos, or the saints.
Gospels
The four books in the New Testament—Matthew, Mark, Luke, and John—that tell the life, death, and resurrection of Jesus Christ.
Great Lent
The 40-day season of preparation before Holy Week and Pascha, marked by fasting, prayer, and repentance. See Pascha.
Holy Week
The week leading up to Pascha, commemorating Christ’s Passion. It includes daily services that walk through His final days. See Pascha.
Icon
A sacred image used in Orthodox worship to point toward heavenly realities. Icons are venerated, not worshipped.
Iconostasis
A screen or wall of icons separating the altar from the nave. It holds central icons of Christ, the Theotokos, and feast days. See Theotokos.
Kontakion
A shorter hymn that complements the Apolytikion, often offering a poetic reflection on the deeper meaning of the feast or saint being commemorated.
Matins (Orthros)
The morning prayer service, often offered before the Divine Liturgy on Sundays and feast days.
Narthex
The entry space or vestibule of the church building, often used for lighting candles and beginning prayers before entering the nave.
Nave
The main area of the church where the faithful gather during services.
New Testament
The second part of the Christian Bible, focused on the life of Christ and the early Church. Includes the Gospels, Epistles, and Revelation.
Old Testament
The first part of the Christian Bible, containing the history, law, and prophets of Israel. Many readings and hymns draw from it.
Pascha
The Orthodox celebration of the Resurrection of Christ. It is the feast of feasts and the heart of the Church year.
Priest
An ordained clergy of the Church who leads services, offers the sacraments, and provides pastoral care.
Prosphora
The leavened bread offered at the Divine Liturgy, from which the Eucharist is prepared. Portions of it are also distributed as antidoron.
Psalter
A book containing the 150 Psalms of the Old Testament, arranged for liturgical or devotional use.
Royal Doors
The central doors in the iconostasis through which only clergy pass during the Divine Liturgy.
Sacrament (Mystery)
A holy act through which God’s grace is given. The Church recognizes seven primary sacraments, including Baptism, Eucharist, and Marriage.
Theotokos
Greek for “God-bearer,” a title for the Virgin Mary that proclaims her as the mother of Jesus Christ, who is God.
Trisagion
A short, ancient hymn in Orthodox worship meaning “Thrice-Holy.” It praises God as Holy Trinity and is chanted with the words: “Holy God, Holy Mighty, Holy Immortal, have mercy on us.” Used frequently in the Divine Liturgy, funeral services, and daily prayers.
Typika
A short service with psalms and prayers, sometimes offered when no priest is present.
Vespers
The evening prayer service that opens the liturgical day, often celebrated on Saturday nights and before feast days.