Flash is a term that can refer to a brief burst of light or a quick event. In photography, a flash is a device that produces a sudden, intense light to illuminate a scene, helping to capture clear images in low-light conditions. In technology, "flash" can also refer to Adobe Flash, a software platform used for creating animations, web applications, and multimedia content. Although it was popular for many years, it has been largely phased out due to security issues and the rise of more modern technologies like HTML5.