"Multi-Function" refers to a device or system designed to perform multiple tasks or functions, rather than being limited to a single purpose. For example, a multi-function printer can print, scan, copy, and sometimes even fax documents, making it a versatile tool for both home and office use. These multi-function devices are popular because they save space and reduce the need for multiple machines. By combining several functions into one unit, users can streamline their workflow and often save money on equipment and maintenance. This concept is applied in various fields, including electronics, appliances, and software.