A washing machine is disclosed. A washing includes a tub holding wash water, a drum rotatable within the tub to hold laundry, a first cabinet forming a first space provided with the tub and the drum to wash laundry, a second cabinet forming a second space for additional function, the second cabinet formed as one body with the first cabinet, and a single partition provided between the first and second cabinets to partition off the second space from the first space, wherein facing ends of the first and second cabinets are in contact with each other to form a single border line.