Authored by Fadhil Abbas Al-Nuaimi, this important work is a specialized lexicon dedicated to the methodology of Tafsir al-Qur'an bi-l-Qur'an (Interpreting the Qur'an with the Qur'an). It meticulously compiles Quranic terms and concepts, providing explanations by citing other interconnected verses from the Holy Qur'an itself. This approach offers readers a profound and authentic understanding of the divine text, relying solely on the scripture's internal coherence. It serves as an indispensable resource for students and scholars seeking a deeper, text-centric interpretation of the Qur'an, free from external commentary.