An "Expandable Section" is a user interface element commonly found in websites and applications. It allows users to click on a header or button to reveal additional content, such as text, images, or links, while keeping the interface clean and organized. This feature enhances user experience by providing information on demand without overwhelming the screen. Typically, expandable sections are used in FAQs, product descriptions, or articles to condense information. When a user clicks to expand, they can view more details, and clicking again will collapse the section. This design helps manage space and improves navigation within the content.