<p>The Glossary of Prosthodontic Terms 4th edition was revised for the first time in four years, and The Glossary of Prosthodontic Terms 5th edition was published on March 25, 2019. In The Glossary of Prosthodontic Terms 5th edition, many newly terms have been included along with academic and era changes, and many of the terms in The Glossary of Prosthodontic Terms 4th edition have changed in their meanings. In this article, we explain the flow of revision, newly listed terms and changes, and also introduce the committee proposal regarding the ideal way of nomenclature. We are glad if readers can read this article and fully use The Glossary of Prosthodontic Terms 5th edition.</p>