passion vs dipsomania

passion and dipsomania both are nouns.

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

As nouns, dipsomania is a hyponym of passion; that is, dipsomania is a word with a more specific, narrower meaning than passion:

passion: an irrational but irresistible motive for a belief or action
dipsomania: an intense persistent desire to drink alcoholic beverages to excess

passion (noun)	dipsomania (noun)
the trait of being intensely emotional	an intense persistent desire to drink alcoholic beverages to excess
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