sharpener

[shahrp-uhn-er]

noun

1. a tool, device, or machine used to produce or restore a fine edge or point on blades, pencils, etc.

2. a person whose work is to restore a fine edge or point on things by means of such a tool or machine.

3. a person, activity, or thing that serves to hone or challenge a person's thinking, skill, etc.

Example Sentences

Don’t trust the gift recipient with a knife sharpener?

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Hwangrae Lee, from Korea, polished his pencil sharpener with a tissue.

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"In atom-probe tomography, we start by sharpening a piece of the lunar sample into a very sharp tip, using a focused ion beam microscope, almost like a very fancy pencil sharpener," Greer said.

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I rubbed the back of my neck where Darren had flicked it on the way back from the pencil sharpener.

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I immediately got feedback saying, that’s actually quite a good knife sharpener.

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