an assembly of the clergy and sometimes also the laity in a diocese or other division of a particular Church
the highest governing body of the Church of England, an elected assembly of three houses (bishops, clergy, and laity)
a conference held in Whitby in 664 that resolved the differences between the Celtic and Roman forms of Christian worship in England, in particular the method of calculating the date of Easter. King Oswy (612–70) of Northumbria decided in favour of Rome, and England as a result effectively severed the connection with the Celtic Church