The first International Forum on "Specialized lexicon between industry mechanisms and function of use" was organized , on Thursday december, 01st ,2022, by the Laboratory of Statistical Studies in the Humain sciences and realization of a Unified Lexicon of the Faculty of Arts and Languages at Tlemcen University in collaboration with the PRFU lexical research team of Algerian Ulemas in language studies between the 5th and 15th centuries hidjri,under the chairmanship of Pr. Khalidi Hicham