Bachelor of Arts vs BA

Bachelor of Arts and BA both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bachelor of Arts	Yes	No	No	No
BA	Yes	No	No	No

As nouns, Bachelor of Arts and BA are synonyms defined as:

Other synonyms of Bachelor of Arts include AB, Artium Baccalaurens.

Bachelor of Arts (noun)	BA (noun)
a bachelor's degree in arts and sciences	a bachelor's degree in arts and sciences