HH1 Full Form. Full Meaning of HH1 Find long form and abbreviation, slang or definition of HH1. What does HH1 mean? What does HH1 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.