frontend
n. countablen. the part of a website or app that you can see and interact with. It includes things like buttons, text, and images.
n. the user-facing interface of a software application or website. It encompasses the graphical elements, layout, and interactive components that run in a client's browser or device.
She works as a developer building the frontend of the new app.
If the frontend is poorly designed, users will struggle to navigate the website even if the underlying database is incredibly fast.
While the backend handles data processing and security, the frontend is responsible for delivering a seamless, responsive user experience across a multitude of devices and screen sizes.
Often used attributively as a noun adjunct, as in 'frontend developer' or 'frontend framework'.