The Abbreviations and Acronyms plugin for Obsidian is a useful tool that helps you to automatically mark and render abbreviations and acronyms in your notes. With this plugin, you can define custom abbreviations and their corresponding tooltips, which will be displayed whenever the abbreviation appears in your note content. The plugin supports two formats for defining abbreviations: arrays of strings or key-value pairs. Additionally, it allows you to customize the metadata keyword and global abbreviations. This plugin is particularly useful for users who frequently work with technical terms and want to easily identify and expand abbreviations as they read through their notes.