RA Full Form. Full Meaning of RA Find long form and abbreviation, slang or definition of RA. What does RA mean? What does RA stand for? We are providing world largest and most comprehensive acronyms, names, abbreviations database directory on the Internet. Our data base contains more than 8,00,000 terms abbreviations and acronyms. You can also search unique terms more than 4,00,000 general Comprehensive words.