domestic ass vs Equus asinus

domestic ass and Equus asinus both are nouns.

Word	Noun	Adjective	Verb	Adverb
domestic ass	Yes	No	No	No
Equus asinus	Yes	No	No	No

As nouns, domestic ass and Equus asinus are synonyms defined as:

domestic ass and Equus asinus: domestic beast of burden descended from the African wild ass; patient but stubborn

Other synonyms of domestic ass include donkey.

domestic ass (noun)	Equus asinus (noun)
domestic beast of burden descended from the African wild ass; patient but stubborn	domestic beast of burden descended from the African wild ass; patient but stubborn