UX design refers to the process of enhancing user satisfaction by improving the usability, accessibility, and overall experience of a product or service. It involves understanding user behaviors, needs, and goals to create intuitive and visually appealing interfaces. UX designers use research, wireframing, prototyping, and testing to craft seamless and enjoyable interactions that meet user expectations and drive business success. By focusing on a user-centric approach, UX design ensures that the final product delivers optimal usability and user engagement.