treasure trove vs collection

treasure trove and collection both are nouns.

Word	Noun	Adjective	Verb	Adverb
treasure trove	Yes	No	No	No
collection	Yes	No	No	No

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

Other hypernyms of treasure trove include accumulation, aggregation, assemblage.

treasure trove (noun)	collection (noun)
any collection of valuables that is discovered	the act of gathering something together
treasure of unknown ownership found hidden (usually in the earth)	a publication containing a variety of works
	request for a sum of money
	several things grouped together or considered as a whole