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