Tajweed is a set of rules that govern the pronunciation and recitation of the Quran. The word "Tajweed" comes from the Arabic language, meaning "to improve" or "to perfect." The primary goal of Tajweed is to recite the Quran in the correct manner, as done by the Prophet Muhammad (peace be upon him) and his companions. Tajweed involves paying attention to the articulation, pronunciation, and intonation of Arabic letters and words.