jennet vs ass

jennet and ass both are nouns.

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

As nouns, ass is a hypernym of jennet; that is, ass is a word with a broader meaning than jennet:

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

jennet (noun)	ass (noun)
female donkey	slang for sexual intercourse
	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