| Subject | English | Spanish |
| comp., MS | user interface language | idioma de la interfaz de usuario (The language in which all software (including the operating system) displays its menus, help files, error messages, and dialog boxes) |
| IT | user language | lenguaje de utilización |
| IT | user-oriented languages | lenguajes orientados al usuario |
| comp., MS | user-preferred interface language | idioma de interfaz definido por el usuario (A language selected by the user for viewing menus, dialog boxes, messages, and Help files. If none is selected, the system-preferred language is displayed) |