Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A strip of land that has been cleared, plowed, or planted with fire-resistant vegetation to prevent a fire from spreading.

from the GNU version of the Collaborative International Dictionary of English.

  • noun a narrow field that has been cleared to check the spread of a prairie fire or forest fire.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun An area cleared of all flammable material to prevent a fire from spreading across it.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a narrow field that has been cleared to check the spread of a prairie fire or forest fire

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

fire +‎ break

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