The act of making a loud noise like thunder.

गरजना

English Usage: The clouds began thundering as the storm approached.

Hindi Usage: जैसे-जैसे तूफान नजदीक आया, बादल गरजने लगे.

The loud, rumbling sound made by thunder.

गरज

English Usage: The thundering of the storm could be heard from miles away.

Hindi Usage: तूफान की गरज मीलों दूर से सुनी जा सकती थी.