XO means Extra Old

        What does XO stand for? Abbreviation of XO, definition of XO, Explanation of XO, Full forms of short form XO.

         We are providing world largest and most comprehensive acronyms, abbreviations directory and search engine for acronyms on the Internet. Abbreviations Finder contains more than 7 million abbreviations and acronyms. You can also search for more than 740,000 general Comprehensive words.