In the context of a website, the term "frontend" refers to the user interface and the visual elements that website visitors see and interact with. Frontend development focuses on the design and implementation of the user interface, including layout, design, typography, colours and interactive elements such as buttons and menus.

Front-end developers use technologies such as HTML, CSS and JavaScript to create the visual and interactive presentation of websites and ensure that they work well on different devices and screen sizes. They work closely with back-end developers and designers to ensure a seamless and user-friendly experience for website visitors.