ass vs jenny ass

ass and jenny ass both are nouns.

Word	Noun	Adjective	Verb	Adverb
ass	Yes	No	No	No
jenny ass	Yes	No	No	No

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

ass: hardy and sure-footed animal smaller and with longer ears than the horse
jenny ass: female donkey

Other hyponyms of ass include domestic ass, donkey, Equus asinus, jack, jackass, jennet, jenny, wild ass.

ass (noun)	jenny ass (noun)
slang for sexual intercourse	female donkey
hardy and sure-footed animal smaller and with longer ears than the horse
the fleshy part of the human body that you sit on
a pompous fool