• رَعْد

Appears 2 times in the Quran.

1. 2:19 أَوْ كَصَيِّبٍ مِّنَ ٱلسَّمَآءِ فِيهِ ظُلُمَٰتٌ وَرَعْدٌ وَبَرْقٌ يَجْعَلُونَ أَصَٰبِعَهُمْ فِىٓ ءَاذَانِهِم مِّنَ ٱلصَّوَٰعِقِ حَذَرَ ٱلْمَوْتِ وَٱللَّهُ مُحِيطٌۢ بِٱلْكَٰفِرِينَ

   Or like abundant rain from the cloud in which is utter darkness and thunder and lightning; they put their fingers into their ears because of the thunder peal, for fear of death, and Allah encompasses the unbelievers.
   

2. 13:13 وَيُسَبِّحُ ٱلرَّعْدُ بِحَمْدِهِۦ وَٱلْمَلَٰٓئِكَةُ مِنْ خِيفَتِهِۦ وَيُرْسِلُ ٱلصَّوَٰعِقَ فَيُصِيبُ بِهَا مَن يَشَآءُ وَهُمْ يُجَٰدِلُونَ فِى ٱللَّهِ وَهُوَ شَدِيدُ ٱلْمِحَالِ

   And the thunder declares His glory with His praise, and the angels too for awe of Him; and He sends the thunderbolts and smites with them whom He pleases, yet they dispute concerning Allah, and He is mighty in prowess.