African American Vernacular English vs Black Vernacular

African American Vernacular English and Black Vernacular both are nouns.

Word	Noun	Adjective	Verb	Adverb
African American Vernacular English	Yes	No	No	No
Black Vernacular	Yes	No	No	No

As nouns, African American Vernacular English and Black Vernacular are synonyms defined as:

African American Vernacular English and Black Vernacular: a nonstandard form of American English characteristically spoken by African Americans in the United States

Other synonyms of African American Vernacular English include AAVE, African American English, Black English, Black English Vernacular, Black Vernacular English, Ebonics.

African American Vernacular English (noun)	Black Vernacular (noun)
a nonstandard form of American English characteristically spoken by African Americans in the United States	a nonstandard form of American English characteristically spoken by African Americans in the United States