Dialog Definition A dialog box or dialog window, e.g. message dialog, warning dialog, file properties dialog, settings dialog, preferences dialog, etc.
File Properties Dialog Definition A type of dialog window that displays the properties of a file or folder (directory) in the computer, including, for example, its file size in bytes and what user has the ownership of the file.
Terminal Window Type of window, generally black with white text, where the output of terminal commands is displayed, and that may allow you to type terminal commands interpreted by a shell, in which case there will be a flashing text cursor at its last line.