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.

We’ve married the user interface with AI, and AI is working hand-in-glove with the user interface.

From Barron's • Feb. 22, 2026

Instead of the MS-DOS-like “command line” interface that the core app has, Cowork displays a more friendly, graphical user interface.

From The Wall Street Journal • Jan. 17, 2026

Fans will say the old user interface had its problems, but we all knew how to use it - so why change it?

From BBC • Nov. 1, 2025

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

From Los Angeles Times • Sep. 18, 2025

This formalized map of article structure allows the user interface design to be uncoupled from the underlying database system, an important step toward interoperability.

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