研とぎ器き

noun

sharpener; tool sharpener

A device or tool for sharpening blades, especially kitchen knives.

• 包ほう丁ちょうの切きれ味あじが悪わるくなったので、研とぎ器きで研といだ。

  The kitchen knife had become dull, so I sharpened it with a sharpener.