sharpness.

1. The quality of having an edge or point that can cut or pierce readily.

2. The quality of showing clear edges and fine details in an image or in vision.

3. An ability to understand, notice, or judge things quickly and accurately.

Use it for

Words that belong together

• sharpness of the blade
• sharpness of the needle

On the page

She tested the sharpness of the blade on a scrap of paper.

Usage notes

Primary category: sensory / description. Forms: Usually uncountable; no ordinary plural in this sense. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: description. Commonness: moderately common.