"Have they not seen the earth, how many We have grown therein from every noble pair?" meaning: from every good kind; and the singular of it is 'zawj' (pair).
﴿أَو لم يَرَوْا إِلَى الأَرْضِ كَمْ أَنْبَتْنَا فِيهَا مِنْ كُلِّ زَوْجٍ كَرِيمٍ﴾ يَعْنِي: مِنْ كُلِّ صِنْفٍ حَسَنٍ؛ فالواحد مِنْهُ زوج
