sharpen

Meanings

• make sharp or sharper
  • "sharpen the knives"
• make crisp or more crisp and precise
  • "We had to sharpen our arguments"
• become sharp or sharper
  • "The debate sharpened"
• put (an image) into focus
• make (images or sounds) sharp or sharper
• raise the pitch of (musical notes)
• give a point to
• make (one's senses) more acute
  • "This drug will sharpen your vision"

Synonyms

focalise, focalize, focus, heighten, point, taper