A display device includes a display unit, a display control unit, a reception unit, and a processing unit. The display control unit generates a synthesized icon when allocated areas of at least two of a plurality of icons displayed in the display unit overlap. The processing unit executes, when the reception unit receives a slide operation starting from a point in a region of the synthesized icon where the icons overlap, a function associated with the icon displayed at an end point of the slide operation, out of the functions respectively associated with the icons superposed in the region.