Mop Up 

  • Extinguishing or removing burning material near control lines, felling snags, and trenching logs to prevent rolling after an area has burned, to make a fire safe, or to reduce residual smoke.

    • Definition Extension: 1) Mopup is one word if used as a noun (the crew will do mopup); 2) Mop up is two words if used as a verb (mop up the fire) or as an adjective (mop up crew).
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