✅ A check box is a graphical user interface element that allows users to select or indicate their choice from a set of options. It is represented by a small square box that can be checked or unchecked, typically accompanied by a label or text describing the option. When the box is checked, it indicates that the corresponding option has been selected or enabled. The check box is commonly used in forms, settings menus, and various applications to provide users with a simple and intuitive way to make selections or indicate preferences.