Collocations with "sharpen"

To make the point of a pencil sharp.

To make the edge of a blade sharper.

To improve a skill, making it better or more effective.

The action of making a claw sharper, often by scratching a surface.

To make reflexes faster and more accurate.

To make a sense or feeling stronger or more acute.

To make the cutting edge of an axe sharper.

To improve one's mental alertness and intelligence.