In WordPress, the term “core” refers to the central codebase that makes up the WordPress content management system.
The core code includes the basic functionality of WordPress, such as the ability to create, edit, and publish content, manage users and permissions, and customize the appearance and behavior of a website using themes and plugins.
The WordPress core is maintained and updated by a team of developers who work to fix bugs, add new features, and improve the overall performance and security of the software.