The book of definitions for Al -Jarjani is a dictionary that includes defining the meanings of terms used in science, philosophy, logic, language, arts and jurisprudence during his era. It is one of the first dictionaries that has a mysterious arrangement; The diligent method. Its owner is Al -Jarjani Ali bin Muhammad bin Ali Al -Sharif Al -Husseini, known as Sayed Mir Sharif, and he is an astronomer, jurist, music, philosopher and linguist