essence vs potpourri

essence and potpourri both are nouns.

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

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

essence (noun)	potpourri (noun)
a toiletry that emits and diffuses a fragrant odor	a jar of mixed flower petals and spices used as perfume
the choicest or most essential or most vital part of some idea or experience	a musical composition consisting of a series of songs or other musical pieces from various sources
the central meaning or theme of a speech or literary work	a collection containing a variety of sorts of things
any substance possessing to a high degree the predominant properties of a plant or drug or other natural product from which it is extracted