necrophilia vs passion

necrophilia and passion both are nouns.

Word	Noun	Adjective	Verb	Adverb
necrophilia	Yes	No	No	No
passion	Yes	No	No	No

As nouns, passion is a hypernym of necrophilia; that is, passion is a word with a broader meaning than necrophilia:

Other hypernyms of necrophilia include cacoethes, mania.

necrophilia (noun)	passion (noun)
an irresistible sexual attraction to dead bodies	the trait of being intensely emotional
	any object of warm affection or devotion
	a strong feeling or emotion
	a feeling of strong sexual desire
	an irrational but irresistible motive for a belief or action
	something that is desired intensely