mania vs passion

mania and passion both are nouns.

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

As nouns, mania and passion are synonyms defined as:

mania and passion: an irrational but irresistible motive for a belief or action

Other synonyms of mania include cacoethes.

mania (noun)	passion (noun)
an irrational but irresistible motive for a belief or action	the trait of being intensely emotional
a mood disorder; an affective disorder in which the victim tends to respond excessively and sometimes violently	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