The word "interface" refers to a point where two systems, subjects, organizations, or individuals interact with each other. In technology, an interface often describes the way users communicate with a software application or hardware, such as graphical user interfaces (GUIs) that allow users to operate a system via visual elements.
The word "interface" originates from the Latin word "interfacere," where "inter-" means "between" and "facere" means "to do or make." It entered the English language in the early 20th century, primarily in the context of physics and engineering, before becoming common in computing.