user interface

American

noun

Digital Technology.

the interface features through which users interact with the hardware and software of computers and other electronic devices. UI

Etymology

Origin of user interface

First recorded in 1965–70

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It also became one of the early examples of user interface design conventions such as badges, rating buttons, sharing and recommendation features which have largely become standard features across media platforms today.

From BBC • Feb. 18, 2026

It got prettier, too, when Claude Code built a cleaner user interface for…Claude Code.

From The Wall Street Journal • Jan. 23, 2026

The browser’s design language and user interface resembles Chrome.

From Barron's • Oct. 22, 2025

“Voice is a very natural user interface, as are hand gestures.”

From Los Angeles Times • Sep. 18, 2025

It is not a case of publishing data but of distributing a typically stand-alone, typically closed system, all—software, user interface, and data—on a little disk.

From Library of Congress Workshop on Etexts by Library of Congress

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023