CMS stands for Content Management System, which is a software application that enables users to easily create, manage, and publish digital content, typically for websites. CMSs allow users to add, edit, and delete content without needing extensive technical knowledge or coding skills. These systems often include features for content creation, editing, publishing, version control, and collaboration, making them useful for creating and maintaining various types of websites and online content. Some popular CMSs include WordPress, Drupal, and Joomla.