A square of glass can also be referred to as a pane of glass, a piece of glass, or a sheet of glass. These terms can all be used to describe a flat, transparent, rectangular piece of material that is commonly used to enclose and protect an interior or exterior space. Other synonyms for a square of glass include window, glazing, vitreous panel, and transparent plate. These terms are often used in the context of architecture and design, where the placement and characteristics of glass can have a significant impact on the aesthetic and function of a building.