In the Quran, if God presents a word that people are not expected to know, it first asks, “do you know what said item is? Then it goes on to explain and define what the said item is. For example:
83:7 Indeed, the book of the wicked is in Sijjeen. 83:8 Do you know what Sijjeen is? 83:9 A numerically structured book.
(٨٣:٧) كَلَّا إِنَّ كِتَابَ الْفُجَّارِ لَفِي سِجِّينٍ (٨٣:٨) وَمَا أَدْرَٮکَ مَا سِجِّينٌ (٨٣:٩) كِتَابٌ مَرْقُومٌ
83:18 Indeed, the book of the righteous will be in ‘Elleyyeen. 83:19 Do you know what ‘Elleyyeen is? 83:20 A numerically structured book.
(٨٣:١٨) كَلَّا إِنَّ كِتَابَ الْأَبْرَارِ لَفِي عِلِّيِّينَ (٨٣:١٩) وَمَا أَدْرَٮکَ مَا عِلِّيُّونَ (٨٣:٢٠) كِتَابٌ مَرْقُومٌ
By the sky and Al-Taareq. Do you know what Al-Taareq is? The bright star (*quasar star).