The term 'BRIDGE' (a gap) can be summarized by the four-letter word 'SPAN'. A BRIDGE is a structure that spans a physical gap or barrier, such as a river, valley, or road. It is typically constructed from materials such as wood, stone, or steel, and is designed to provide a safe passage for people and vehicles. Bridges are often used to connect two points of land, allowing for easier transportation and communication between them.