In English poor-law. A union consists of two or more parishes which have been consolidated for the better administration of the poor-law therein. In ecclesiastical law. A union consists of two or more benefices which have been united into one benefice. Sweet. In Public law. A popular term in America for the United States; also, in Great Britain, for the consolidated governments of England and Scotland, or for the political tie between Great Britain and Ireland. In Scotch law. A “clause of union” is a clause in a feoffment by which two estates, separated or not adjacent, are united as one, for the purpose of making a single seisin suffice for both.