danger – el peligro
(Pronounced peh-lee-groh)
To remember that danger is pronounced peh-lee-groh (peligro) in Spanish, use the following mnemonic:
Danger signs when the pelican grows (peligro) angry are the raising of her wings and the snapping of her beak.
Peligro is masculine, so it's el peligro. Imagine an elephant in danger.