sharpener

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A sharpener is a tool for sharpening. It may refer to:

• Knife sharpener, a tool for sharpening a knife
• Sharpening steel, a tool for sharpening a knife, usually a kitchen knife
• Sharpening stone, a tool for sharpening a bladed or edged tool, such a knife
• Pencil sharpener, a tool for sharpening a pencil
• Sharpening jig, a tool for sharpening a woodworking tool