The phrase "sixth edition" means the sixth version or the sixth time something has been updated or released, usually referring to a book or publication. Full definition
Hello, and welcome to the forty - sixth edition of Hey! (riddlethos.com)
The bestselling book in its category for more than a decade, this completely revised and updated sixth edition includes: (amazon.com)
«This highly anticipated sixth edition has been revised to include an in - depth analysis of the first global crisis of the twenty - first century. (businessinsider.com)