universe vs collection

universe and collection both are nouns.

Word	Noun	Adjective	Verb	Adverb
universe	Yes	No	No	No
collection	Yes	No	No	No

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

universe: (statistics) the entire aggregation of items from which samples can be drawn
collection: several things grouped together or considered as a whole

Other hypernyms of universe include accumulation, aggregation, assemblage.

universe (noun)	collection (noun)
everything stated or assumed in a given discussion	the act of gathering something together
(statistics) the entire aggregation of items from which samples can be drawn	a publication containing a variety of works
everything that exists anywhere	request for a sum of money
	several things grouped together or considered as a whole