tooth fairy vs sprite

tooth fairy and sprite both are nouns.

Word	Noun	Adjective	Verb	Adverb
tooth fairy	Yes	No	No	No
sprite	Yes	No	No	No

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

tooth fairy: a fairy that is said to leave money at night under a child's pillow to compensate for a baby tooth falling out
sprite: a small being, human in form, playful and having magical powers

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

tooth fairy (noun)	sprite (noun)
a fairy that is said to leave money at night under a child's pillow to compensate for a baby tooth falling out	a small being, human in form, playful and having magical powers