Definition: The word "260x65" is an abbreviation for "260 square inch." It describes a unit measuring an area in the context of measurement, particularly in construction or architecture. Definition: A square inch (also known as an inch squared) is a measurement of space that measures one side length and does not include any thickness. It is typically used in dimensions of an object or structure to describe how much space it occupies, such as on a building wall or on furniture. The term comes from the Latin word "in."