UI [USER INTERFACE] :-
UI design refers to the aesthetic elements by which people interact with a product, such as buttons, icons, menu bars, typography, colors, and more. User experience (UX) design refers to the experience a user has when interacting with a product.
UX [USER Experience] :-
UX design is the process design teams use to create products that provide meaningful and relevant experiences to users. This involves the design of the entire process of acquiring and integrating the product, including aspects of branding, design, usability and function.