potpourri vs mixed bag

potpourri and mixed bag both are nouns.

Word	Noun	Adjective	Verb	Adverb
potpourri	Yes	No	No	No
mixed bag	Yes	No	No	No

As nouns, potpourri and mixed bag are synonyms defined as:

potpourri and mixed bag: a collection containing a variety of sorts of things

Other synonyms of potpourri include assortment, miscellanea, miscellany, mixture, motley, salmagundi, smorgasbord, variety.

potpourri (noun)	mixed bag (noun)
a jar of mixed flower petals and spices used as perfume	a collection containing a variety of sorts of things
a musical composition consisting of a series of songs or other musical pieces from various sources
a collection containing a variety of sorts of things