smorgasbord vs melange

smorgasbord and melange both are nouns.

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

As nouns, melange is a hyponym of smorgasbord; that is, melange is a word with a more specific, narrower meaning than smorgasbord:

smorgasbord (noun)	melange (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	a motley assortment of things
a collection containing a variety of sorts of things