demon vs succuba

demon and succuba both are nouns.

Word	Noun	Adjective	Verb	Adverb
demon	Yes	No	No	No
succuba	Yes	No	No	No

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

demon: an evil supernatural being
succuba: a female demon believed to have sexual intercourse with sleeping men

Other hyponyms of demon include incubus, succubus, dibbuk, dybbuk.

demon (noun)	succuba (noun)
an evil supernatural being	a female demon believed to have sexual intercourse with sleeping men
a cruel wicked and inhuman person
someone extremely diligent or skillful