abb abaze • Abba · · · Info · Definitions · Characters · · abb · · Text Latin · · Script 3 · · Length Definitions · · · (noun) an urban hit squad and guerrilla group of the Communist Party in the Philippines; formed in the 1980s. Synonyms: Alex Boncayao Brigade, ABB, Revolutionary Proletarian Army, RPA-ABB. · · Noun Definition 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062