a hard cross-grained round piece of wood in a board where a branch emerged n
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n a tight cluster of people or things n any of various fastenings formed by looping and tying a rope (or cord) upon itself or to another rope or to another object n a hard cross-grained round piece of wood in a board where a branch emerged n something twisted and tight and swollen n a unit of length used in navigation
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A hydrated arseniate of copper, occurring in obtuse pyramidal crystals of a sky-blue or verdigris-green color.