noun
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a tapered piece of metal, commonly pointed and having a flattened head, driven with a hammer, and used to hold pieces or parts together, to hang things on, etc.; a nail.
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a small piece of wood, wedge, fixed to or in-built in the wall, used to hang things on.
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the portion just above the knee of the leg.
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a corner of a room or a hall of a house.
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a border, boundary of a district or a country.
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the sharper part of a cutting instrument or a weapon; blade.