Noun
A church building shared by more than one church congregation, usually to lighten the financial burden (cost per congregation).
A united church (sect) comprising formerly separate sects that have joined.
Source: en.wiktionary.orgMemorial Services will be held at 10 a.m., Saturday, Sept. 2, 2017 at The Grandfalls Union Church 103 Ave D, Grandfalls, Texas 79742. Source: Internet
He was a member of the Hamlet Union Church, of Hamlet, Nebraska, for over 70 years. Source: Internet