The best WordPress glossary builder plugin to create and manage your own glossary of terms.

A plugin to wrap acronyms in posts and comments with appropriate <acronym> acronyms. Allows users to manage lists of acronyms through admin interface. Based on Joel Bennett's Acronym Replacer plugin (http://www.huddledmasses.org/) and Joel Pan's NP_Acronym plugin for Nucleus CMS.

Add an abbreviation format button to the formatting toolbar in the block editor.

A plugin to define acronyms in pages, posts and comments site-wide. Defined acronyms are underlined, and the definition appears as a tool-tip.