Tajweed means to make things better or more perfect. So tajweed means to read without any mistakes.The aspects of tajweed in the Holy Quran are two. They are the following: The theoretical part: 1- It relates to the rules set by scholars in the tajweed grammar books, such as prolongation  / mamdood / and its times, the points of articulation; izhar, idgam, iqlab, ikhfaa’ etc which were elaborately explained in the tajweed books. 2 - Practical tajweed: it is called the applied tajweed. A learner can’t master this aspect of tajweed without learning the rules at the hands of a Sheik. This rules include the / rum /, / ishmam /, / ghunnah /, / tasheel / , and the /lipial ikhfaa’/. This aspect protects the learner from the wrong articulation and inferring inaccurate meaning in the Holy Quran.