cortafuegos

Etymology
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Noun

 * 1) firebreak, fire line, firetrail  An area cleared of all flammable material in the woods to prevent a fire from spreading across it
 * 2)  firewall a fireproof barrier used to prevent the spread of fire between or through buildings, structures, electrical substation transformers, or within an aircraft or vehicle
 * 3)  firewall
 * 1)  firewall