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

The updates include a lot of things fans have asked for, such as improving the user interface, making combat more consistent, and removing systems that make people feel pressured to log in every day.

From BBC • Jan. 5, 2026

The old car’s touch-screen user interface was underpowered, slow-witted and limited.

From The Wall Street Journal • Sep. 25, 2025

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

From Los Angeles Times • Sep. 18, 2025

Typically this is created while debugging user interface code.

From The Jargon File, Version 4.2.2, 20 Aug 2000 by Steele, Guy L.

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