Meaning of 'sharpen'

verb

put (an image) into focus

Synonyms: focus

verb

become sharp or sharper

Example: "The debate sharpened"

verb

make crisp or more crisp and precise

Example: "We had to sharpen our arguments"

verb

make (one's senses) more acute

Example: "This drug will sharpen your vision"

Synonyms: heighten

verb

give a point to

Synonyms: taper

verb

raise the pitch of (musical notes)

verb

make sharp or sharper

Example: "sharpen the knives"

verb

make (images or sounds) sharp or sharper