sharpener

Definitions of sharpener
1

n any implement that is used to make something (an edge or a point) sharper

“a knife sharpener
Types:
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grindstone
a revolving stone shaped like a disk; used to grind or sharpen or polish edge tools
pencil sharpener
a rotary implement for sharpening the point on pencils
steel
knife sharpener consisting of a ridged steel rod
strickle
an implement for sharpening scythes
strop
a leather strap used to sharpen razors
Type of:
implement
instrumentation (a piece of equipment or tool) used to effect an end

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