wraith vs phantasm

wraith and phantasm both are nouns.

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

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

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

wraith (noun)	phantasm (noun)
a mental representation of some haunting experience	something existing in perception only
	a ghostly appearing figure