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