wraith vs apparition

wraith and apparition both are nouns.

Word	Noun	Adjective	Verb	Adverb
wraith	Yes	No	No	No
apparition	Yes	No	No	No

As nouns, apparition is a hypernym of wraith; that is, apparition is a word with a broader meaning than wraith:

Other hypernyms of wraith include fantasm, phantasm, phantasma, phantom, shadow.

wraith (noun)	apparition (noun)
a mental representation of some haunting experience	an act of appearing or becoming visible unexpectedly
	something existing in perception only
	the appearance of a ghostlike figure
	a ghostly appearing figure