Revolutionary Proletarian Army vs ABB

Revolutionary Proletarian Army and ABB both are nouns.

Word	Noun	Adjective	Verb	Adverb
Revolutionary Proletarian Army	Yes	No	No	No
ABB	Yes	No	No	No

As nouns, Revolutionary Proletarian Army and ABB are synonyms defined as:

Revolutionary Proletarian Army and ABB: an urban hit squad and guerrilla group of the Communist Party in the Philippines; formed in the 1980s

Other synonyms of Revolutionary Proletarian Army include Alex Boncayao Brigade, RPA-ABB.

Revolutionary Proletarian Army (noun)	ABB (noun)
an urban hit squad and guerrilla group of the Communist Party in the Philippines; formed in the 1980s	an urban hit squad and guerrilla group of the Communist Party in the Philippines; formed in the 1980s