The significance of user experience (UX) design lies in its focus on enhancing how users interact with a product or service. Good UX design improves usability, ensuring that features are intuitive and user-friendly. It involves understanding user needs and behaviors through research and testing, guiding designers to create interfaces that are both aesthetically pleasing and functional. A positive user experience leads to higher user satisfaction and retention, ultimately contributing to the success and reputation of a product or brand in a competitive market.