The Holy Quran, as the greatest written divine miracle, can be studied from various aspects, and some aspects of it can be studied using semantic knowledge. The knowledge of semantics is more than half a century old, which is considered like other branches of linguistics in the world, and many scientists with different cultures and tendencies deal with the issue of meaning. Semantics has various branches that the branch of lexical semantics is the basis of the present research; Through it, the meaning of words and sentences in a text can be analyzed and the exact position of its words and combinations can be obtained according to the semantic system in which it is located. What is discussed in this article is the semantic analysis of the word and the concept of "An-Naba (Announcement)" in the Qur'an and in the next stage is the semantic network of this word and its relationship with other semantic networks.