Meaning

noun a group of religious congregations having its own organization and a distinctive faith

noun a class of one kind of unit in a system of numbers or measures or weights or money

noun identifying word or words by which someone or something is called and classified or distinguished from others

originFrom Middle English denominacioun, from Old French denominacion, from Latin dēnōminātiō. By surface analysis, denominate + -ion.

Etymology from Wiktionary, CC BY-SA 3.0