Definition (verb): make sharp or sharper
Example: sharpen the knives
Definition (verb): make crisp or more crisp and precise
Example: We had to sharpen our arguments
Definition (verb): become sharp or sharper
Example: The debate sharpened
Definition (verb): put (an image) into focus
Example: Please focus the image; we cannot enjoy the movie
Definition (verb): make (images or sounds) sharp or sharper
Definition (verb): raise the pitch of (musical notes)
Definition (verb): give a point to
Example: The candles are tapered
Definition (verb): make (one’s senses) more acute
Example: This drug will sharpen your vision