Extensible user interface language is a tongue-twister term that describes a programming language used for developing customizable and flexible user interfaces. Although this phrase is widely used in the IT industry, it may sometimes seem challenging to communicate it to non-technical individuals. Fortunately, there are synonyms that can be used interchangeably to describe it more easily. These include user interface markup language, adaptable user interface language, and customizable user interface code. By simplifying complex terminology, it can help stakeholders to better grasp the concept and its applications, especially when discussing the development of innovative and dynamic user interfaces.