smorgasbord vs collection

smorgasbord and collection both are nouns.

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

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

Other hypernyms of smorgasbord include accumulation, aggregation, assemblage.

smorgasbord (noun)	collection (noun)
an assortment of foods starting with herring or smoked eel or salmon etc with bread and butter; then cheeses and eggs and pickled vegetables and aspics; finally hot foods; served as a buffet meal	the act of gathering something together
a collection containing a variety of sorts of things	a publication containing a variety of works
	request for a sum of money
	several things grouped together or considered as a whole