fantasm vs disembodied spirit

fantasm and disembodied spirit both are nouns.

Word	Noun	Adjective	Verb	Adverb
fantasm	Yes	No	No	No
disembodied spirit	Yes	No	No	No

As nouns, disembodied spirit is a hypernym of fantasm; that is, disembodied spirit is a word with a broader meaning than fantasm:

fantasm: a ghostly appearing figure
disembodied spirit: any incorporeal supernatural being that can become visible (or audible) to human beings

Other hypernyms of fantasm include spirit.

fantasm (noun)	disembodied spirit (noun)
something existing in perception only	any incorporeal supernatural being that can become visible (or audible) to human beings
a ghostly appearing figure