An Accordion Menu is a user interface element that allows users to expand and collapse sections of content. It is commonly used in websites and applications to organize information in a compact way, making it easier for users to navigate through different categories or options without overwhelming them with too much information at once. When a user clicks on a section header, the corresponding content expands to reveal more details, while other sections can be collapsed. This design is particularly useful for mobile devices, where screen space is limited, and helps improve user experience by keeping the interface clean and organized.