The phrase "maximize window" refers to the action of enlarging a program or application window to full screen. However, there are numerous synonyms that can be used to describe this action. Some common alternatives include "enlarge window," "expand screen," "fill screen," "stretch window," "go full screen," "optimize window," and "maximize screen real estate." Additionally, some programs may use different terminology for the same action, such as "zoom in on window" or "show full page." Regardless of the phrasing, maximizing a window can be an effective way to increase productivity and improve visibility when working on a computer.