faun vs Roman deity

faun and Roman deity both are nouns.

Word	Noun	Adjective	Verb	Adverb
faun	Yes	No	No	No
Roman deity	Yes	No	No	No

As nouns, Roman deity is a hypernym of faun; that is, Roman deity is a word with a broader meaning than faun:

faun: ancient Italian deity in human shape, with horns, pointed ears and a goat's tail; equivalent to Greek satyr
Roman deity: a deity worshipped by the ancient Romans

faun (noun)	Roman deity (noun)
ancient Italian deity in human shape, with horns, pointed ears and a goat's tail; equivalent to Greek satyr	a deity worshipped by the ancient Romans