Smart glass refers to a type of glass that can change its properties depending on external stimuli such as temperature, light, and electricity. There are several synonyms for this type of glass, including switchable glass, dynamic glass, electrochromic glass, and intelligent glass. Each of these terms describes the same kind of glass that can vary its transparency or color based on the surrounding environment. Other related terms include privacy glass, which allows for selective privacy, and low-e glass, which uses a special coating to reduce energy loss. Ultimately, smart glass provides a modern and innovative solution for architectural and design applications.