A commercial complex is a large building or group of buildings that contain multiple businesses, such as stores, restaurants, and entertainment venues. The term is often used to refer to a shopping MALL, which is a type of commercial complex that typically includes a variety of retail stores, restaurants, and other services. The term 'MALL' is derived from the word 'MALLEUS, ' which means hammer in Latin, and refers to the shape of the building, which resembles a hammer.