lightning – el relámpago
(Pronounced rreh-lahm-pah-goh)
To remember that lightning is pronounced rreh-lahm-pah-goh (relámpago) in Spanish, use the following mnemonic:
Lightning struck me under the red street lamp; I was in agony (relámpago).
Relámpago is masculine, so it's el relámpago. imagine an elephant shooting lightning from it's trunk.