AI & the web
UI
User interface: the controls and surfaces through which someone interacts with a system.
In everyday use
The dictionary's search box and filters are part of its UI.
What to keep in mind
An attractive interface can still be difficult to use.
Also searched as: User interface
Further reading
Original explanation and example by Perspectism. Further reading may cover the wider subject, rather than this exact wording. Edition updated 7 October 2026.
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