The article is dedicated to analyzing the concepts of definiteness and indefiniteness in the Arabic language, as well as examining nouns that belong to the category of definiteness. In Arabic, there exists a category of definiteness and indefiniteness, which is not found in many other languages. By studying this category, one can understand the true meaning of words, as these categories clarify what is familiar or unfamiliar to the speaker and the listener.

category of definiteness, category of indefiniteness, proper nouns, personal pronouns, demonstrative pronouns, relative pronouns, genitive construction (or Izaafa), interjection.

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Abdulaziz, X. (2018). Applied Grammar. an-nahv at-tatbiqiy. Misr: Dar al-lu‘lu‘.

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Grande, B. (1998). Course of Arabic grammar in comparative-historical light. Kurs arabskoy grammatiki v sravnitel'no-istoricheskom osveshenii. Moscow: RAN.

Halif, Y. (2003). Rules of the Arabic language (2003). Qava’id al-lug‘a al-arabiyya. . al-Qohira: Dar al-ma’arif.

Hassan, A. (1975). Comprehensive Grammar. Part Four. An-Nahv al-vafi. Al-Juz’ar-rabi’. al-Qohira: Dar al-ma’arif.

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