The Roman Catholic Church.

The English branch of the Christian Church; (since the 16th century) specifically the established Protestant church in England which is the mother church of the Anglican Communion.

A church that is officially recognized as a national or state church by a government; in England it is the Church of England.

A Christian church, other than a cathedral, that has a chapter of canons and a dean or provost.

Any Protestant church run independently by its own congregation, especially one in the Reformed (Calvinist) and/or Dissenter traditions, such as the United Church of Christ, the National Association of Congregational Christian Churches, or the Conservative Congregational Christian Conference.

The Eastern Orthodox Church / The Eastern body of Christendom / That part of Christendom apart from the Eastern Catholic Churches / Any Church that self-designates as Orthodox

The Catholic Church, which consists of 24 particular churches in full communion with the Pope as the Bishop of Rome.

Any of the churches worldwide that are in communion with the Church of England, have the same doctrine, and have the Archbishop of Canterbury as supreme head. / A church that practises Anglicanism.

Alternative spelling of megachurch

(informal) A person who is strongly interested, in an amateur capacity, in ecclesiology, church architecture, history and church art, and visits churches in order to view the buildings for themselves, as opposed to visiting them for religious reasons.