📖 WordNook

sharpen

verb
  1. put (an image) into focus
    focus
  2. become sharp or sharper
    “The debate sharpened”
  3. make crisp or more crisp and precise
    “We had to sharpen our arguments”
  4. make (one's senses) more acute
    “This drug will sharpen your vision”
    heighten
  5. give a point to
    taper
  6. raise the pitch of (musical notes)
  7. make sharp or sharper
    “sharpen the knives”
  8. make (images or sounds) sharp or sharper