faerie vs supernatural being

faerie and supernatural being both are nouns.

Word	Noun	Adjective	Verb	Adverb
faerie	Yes	No	No	No
supernatural being	Yes	No	No	No

As nouns, supernatural being is a hypernym of faerie; that is, supernatural being is a word with a broader meaning than faerie:

faerie: a small being, human in form, playful and having magical powers
supernatural being: an incorporeal being believed to have powers to affect the course of human events

Other hypernyms of faerie include spiritual being.

faerie (noun)	supernatural being (noun)
the enchanted realm of fairies	an incorporeal being believed to have powers to affect the course of human events
a small being, human in form, playful and having magical powers