potpourri vs collection

potpourri and collection both are nouns.

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

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

Other hypernyms of potpourri include accumulation, aggregation, assemblage.

potpourri (noun)	collection (noun)
a jar of mixed flower petals and spices used as perfume	the act of gathering something together
a musical composition consisting of a series of songs or other musical pieces from various sources	a publication containing a variety of works
a collection containing a variety of sorts of things	request for a sum of money
	several things grouped together or considered as a whole