"UI" stands for user interface, which refers to the point of interaction between users and digital systems. In design and user experience, UI encompasses the layout, visual elements, and interactive components that facilitate user engagement with software applications or websites. A well-designed UI focuses on aspects such as usability, accessibility, and aesthetics, ensuring that users can easily navigate and accomplish their tasks. Effective UI design is crucial for enhancing overall user experience (UX), leading to increased user satisfaction and adoption of the product.