Abstract
Semantic explanation of the Holy Koran is considered a basic aspect in linguistic one of the Holy Koran. it does not concern one word of the Koran only. but it also deals with structure of the Koran . every speech consists of many parts to signify separately one part of meaning in the structure of the Koran . significance of Koran structure has an extensive and important aspect in (the Cave) (chapter of the Holy Koran) in (Tafseer Al-Jalalain) the number of Koran structure in this chapter was (47). As follow:
1.Adjunt.(18) structure
2. Verbal sentence .(17)
3. Phrase .(5) structure
4. Relative. (4) structure
5. Adjective and substantive.(3) structure
