The books of exegesis and readings have paid attention to the Quranic readings, and they worked on directing it and explaining their types and arrange them between the frequent and irregular ones, and their diversity and difference from reading to another in the conjugation of the word sometimes, and changing the word and replacing it with another at other times, and one of the appearances of the multiplicity of Quranic readings is that the singular comes with in definition in reading, and with definition by (aal) in another one, therefore this study aims to studying the Quranic reading the frequent and irregular ones, that mentioned with in definition, and with definition by (the) in some places in the Holy Quran, and tries using the context and a set of linguistic and relations to show the effect of this diversity in the meaning of the readings and to show the aesthetic of both of in definition and definition by (the), and to show the meaning of each one, and to show the type of (the) in the reading and its significance whether it is referring relevant to the aforementioned or gender, to stand on the rhetorical purposes and the aesthetic dimensions of the frequent readings.