USR means User Support Room

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

         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.