This dictionary deciphers more than 210,000 English and non-English acronyms used internationally and in specific countries. Also available in a ``reverse'' edition, allowing users to look up the full name or definition and locate the abbreviated form. This 5th edition adds approximately 41,000 new terms.

Each volume separately titled: v. 1, Acronyms, initialisms & abbreviations dictionary; v. 2, New acronyms, initialisms & abbreviations (formerly issued independently as New acronyms and initialisms); v. 3, Reverse acronyms, initialisms & abbreviations dictionary (formerly issued independently as Reverse acronyms and initialisms dictionary).