natural order vs universe

natural order and universe both are nouns.

Word	Noun	Adjective	Verb	Adverb
natural order	Yes	No	No	No
universe	Yes	No	No	No

As nouns, universe is a hypernym of natural order; that is, universe is a word with a broader meaning than natural order:

natural order: the physical universe considered as an orderly system subject to natural (not human or supernatural) laws
universe: everything that exists anywhere

Other hypernyms of natural order include cosmos, creation, existence, macrocosm, world.

natural order (noun)	universe (noun)
the physical universe considered as an orderly system subject to natural (not human or supernatural) laws	everything stated or assumed in a given discussion
	(statistics) the entire aggregation of items from which samples can be drawn
	everything that exists anywhere