NajimKassimHamedCountry: RussiaCity: SaratovCompany: Saratov State University, Russia, 410012, Saratov, Astrakhanskaya street, 83 Position: Graduate Student, Chair of Theory and History of Language and Applied LinguisticsE-mail: sarteorlingv@yandex.ru Author's articles The Role of the Thematic Group «Hats» in the Formation of Russian Idiomaic System The Idiom as a Way of Representing the Linguistic Picture of the World (on the Material of the Arab Phraseological Units with the Component «Hat»)