African American English vs African American Vernacular English

African American English and African American Vernacular English both are nouns.

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

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

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

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

African American English (noun)	African American Vernacular English (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