A holographic display is a stunning image display technology that has become an increasingly popular phenomenon in recent times. With the increasing demand for this technology, it is important to be able to communicate the same idea using different words. Some great synonyms for holographic display include 3D projection, virtual reality display, 3D image display, hologram projection, and digital holography. Other words that can be used to describe this visually impressive technology include projection mapping, 3D graphics, augmented reality, and interactive imaging. These synonyms adequately capture the essence of the holographic display technology, and can be used to effectively communicate its functionality across different contexts.