"Double-click" refers to the action of quickly pressing a mouse button twice in succession. This action is commonly used in computer interfaces to open files, applications, or folders. It is a standard method for selecting items on a computer screen, particularly in operating systems like Windows and macOS. The double-click action is often associated with graphical user interfaces (GUIs), where users interact with visual elements. It is distinct from a single click, which typically selects an item without opening it. Understanding how to double-click is essential for effective navigation and operation of computers and software applications.