fantasm vs phantasm

fantasm and phantasm both are nouns.

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

As nouns, fantasm and phantasm are synonyms defined as:

Other synonyms of fantasm include apparition, phantasma, phantom, shadow.

As nouns, fantasm and phantasm are synonyms defined as:

Other synonyms of fantasm include apparition, phantasma, phantom, specter, spectre.

fantasm (noun)	phantasm (noun)
something existing in perception only	something existing in perception only
a ghostly appearing figure	a ghostly appearing figure