Glossary of Terms: A
- AVE
- Aaronic Blessing
- Aaronic Blessing
- Abbess
- Abbey
- Abbot
- Abjuration
- Abjure
- Ablutions
- Absalom Jones Theological Institute
- Absolution
- Abstinence, Days of
- Acclamation
- Acolyte
- Adams, William
- Addison, James Thayer
- Adiaphora
- Administration, Sentences of
- Adonai
- Adoptionism
- Adoration
- Advent Festival of Lessons and Music
- Advent Wreath
- Advent
- Advowson
- Aelred
- Affirmation of St
- Affusion
- African Mission School
- Afro-American Churchman
- Agape
- Agnes
- Agnus Dei
- Aidan
- Aisle
- Alabama Plan, The
- Alabama, Diocese of
- Alaska, Diocese of
- Alban, St.
- Albright, Raymond Wolf
- Alb
- Alcuin
- Alexander, Cecil Frances
- Alexander, George Mayer
- Alfred the Great
- All Faithful Departed, Commemoration of
- All Hallows' Eve
- All Saints' Day
- All Saints' Episcopal College, Vicksburg, Mississippi
- All Souls' Day
- Alleluia Verse
- Alleluia
- Allen, Alexander Viets Griswold
- Allen, Benjamin
- Allen, Ethan
- Allen, Roland
- Allen, Sturges
- Allin, John Maury
- Alms Basin
- Alms
- Alphege
- Altar Book, The
- Altar Cloth
- Altar Guild
- Altar Lights
- Altar Rails
- Altar Stone
- Altar of Repose
- Altar
- Ambo
- Ambrose
- Ambulatory
- Amen
- American Church Monthly
- American Church Review
- American Churchman
- American Missal, The
- American Quarterly Church Review and Ecclesiastical Register, The
- American Standard Version of the Bible (1901)
- Amice
- Ampulla
- Anamnesis
- Anaphora
- Anathema
- Anchorite, Anchoress
- Andalusia College, Bucks County, Pennsylvania
- Anderson, Charles Palmerton
- Andrew, St.
- Andrewes, Lancelot
- Andros, Sir Edmond
- Andrus, Joseph Raphael
- Angelic Salutation, The
- Angelus
- Angel
- Angel
- Anglican Catholic, The
- Anglican Chant Psalter, The (1987)
- Anglican Chant
- Anglican Communion, The
- Anglican Cycle of Prayer
- Anglican Digest, The
- Anglican Executive Officer
- Anglican Missal
- Anglican Opinion
- Anglican School of Theology and Institute of Contemplative Studies, Dallas
- Anglican Theological Review (ATR)
- Anglican World
- Anglican and Episcopal History
- Anglican, The
- Anglicanism
- Anglo-Catholic Movement, Anglo-Catholicism
- Anglo-Catholic Movement, Anglo-Catholicism
- Anglo-Catholic Movement, Anglo-Catholicism
- Anking, Missionary District of
- Anne and Joachim
- Annunciation, The
- Anointing
- Anselm, St.
- Anskar
- Ante-Communion
- Antependium
- Anthem
- Anthon, Henry
- Antinomianism
- Antiphonal
- Antiphonary
- Antiphon
- Antony
- Apocrypha
- Apollinarianism
- Apologetics, Apologists, Apology
- Apophatic
- Apophatic
- Apophatic
- Apophthegmata
- Apophthegm
- Apostasy
- Apostasy
- Apostasy
- Apostate
- Apostles' Creed, The
- Apostle
- Apostolic Blessing
- Apostolic Constitutions
- Apostolic Succession
- Apostolic Tradition of Hippolytus (215)
- Apostolic Tradition
- Apostolicae Curae
- Apostolicity
- Apotheosis
- Apse
- Apthorp, East
- Aquinas, Thomas
- Arcae
- Archangel
- Archbishop of Canterbury
- Archbishop
- Archdeacon
- Archivist of the Episcopal Church
- Arculae
- Area Cluster (Ministry)
- Area Mission
- Arianism
- Arianism
- Arizona, Diocese of
- Arkansas Theological Chautauqua School
- Arkansas, Diocese of
- Armed Forces Prayer Book
- Armed Forces, Suffragan Bishop for
- Articles of Religion
- Ascension of Christ, The, or Ascension Day
- Asceticism
- Ash Wednesday
- Ashes, Blessed
- Asheville, Missionary District of
- Asperges
- Aspergillum
- Aspersion
- Aspirant
- Assistant Bishop
- Associate Mission
- Assumption of Mary
- Athanasian Creed
- Athanasius
- Atkinson, Thomas
- Atlanta, Diocese of
- Atonement
- Atonement
- Atrium
- Attrition
- Auchmuty, Samuel
- Augustine of Canterbury
- Augustine of Hippo
- Aumbry
- Auricular Confession
- Authority, Sources of (in Anglicanism)
- Authority, Sources of (in Anglicanism)
- Authority, Sources of (in Anglicanism)
- Autocephalic Churches
- Ave Maria
