WAI-ARIA, or Web Accessibility Initiative - Accessible Rich Internet Applications, is a set of guidelines designed to improve web accessibility for people with disabilities. It provides a framework for developers to create more accessible web content by adding specific attributes to HTML elements. These attributes help assistive technologies, like screen readers, understand the roles and properties of various elements on a webpage. By using WAI-ARIA, developers can enhance the user experience for individuals who rely on assistive technologies. This includes making dynamic content, such as menus and forms, more navigable and understandable. Overall, WAI-ARIA plays a crucial role in promoting inclusivity on the web.