pixie vs sprite

pixie and sprite both are nouns.

Word	Noun	Adjective	Verb	Adverb
pixie	Yes	No	No	No
sprite	Yes	No	No	No

As nouns, sprite is a hypernym of pixie; that is, sprite is a word with a broader meaning than pixie:

Other hypernyms of pixie include faerie, faery, fairy, fay.

pixie (noun)	sprite (noun)
(folklore) fairies that are somewhat mischievous	a small being, human in form, playful and having magical powers
creeping evergreen shrub having narrow overlapping leaves and early white star-shaped flowers; of the pine barrens of New Jersey and the Carolinas