Moodle is a popular open source learning management system (LMS) used by many organizations for online learning and development. This document defines key Moodle terminology to help users understand the Moodle platform better, including definitions for things like Moodle courses, modules, roles, activities, resources, and plugins. It also explains concepts like Moodle versions, instances, themes, filters, badges, certificates, quizzes, forums, and analytics to provide a comprehensive overview of Moodle terminology for novices.