Cyanotype, a photographic printing process that produces a cyan-blue print, is known for its unique and striking appearance. However, there are several synonyms that can be used to refer to this process, including ferroprussiate and blueprint. These words are commonly used in the art and photography worlds to describe the same process. Other terms that can be used to describe cyanotype include sun printing, heliography, and photograms. Regardless of the word used, cyanotype remains a popular alternative process for photographers and artists looking to create bold, statement-making prints.