United and uniting churches

A united church, also called a uniting church, is a denomination formed from the merger or other form of church union of two or more different Protestant Christian denominations, a number of which come from separate and distinct denominational orientations or traditions. Multi-denominationalism, or a multi-denominational church or organization, is a congregation or organization that is affiliated with two or more Christian denominations, whether they be part of the same tradition or from separate and distinct traditions.

Source: Wikipedia — United and uniting churches (CC BY-SA 4.0)