firebreak ( synonym found)
Definition of firebreak:

°An area cleared of all flammable material to prevent a fire from spreading across it.
"The firefighters used a bulldozer to clear a firebreak in the forest to try to contain the forest fire."
Definition of firebreak:

°An area cleared of all flammable material to prevent a fire from spreading across it.
"The firefighters used a bulldozer to clear a firebreak in the forest to try to contain the forest fire."
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