transitive & intransitive verb . To make or become sharp or sharper.

To make sharp or sharper; render more acute, keen, eager, active, intensive, quick, biting, severe, tart, etc.: as, to sharpen a sword or a knife; to sharpen the appetite; to sharpen vinegar.

In music, same as sharp, v., 2.

To make something sharp; put a keen edge or sharp point on something.

To grow or become sharp.

In music, same as sharp.

transitive verb. To give a keen edge or fine point to; to make sharper.

transitive verb. To render more quick or acute in perception; to make more ready or ingenious.

transitive verb. To make more eager.

transitive verb. To make more pungent and intense.

transitive verb. To make biting, sarcastic, or severe.

transitive verb. To render more shrill or piercing.

transitive verb. To make more tart or acid; to make sour.

transitive verb. To raise, as a sound, by means of a sharp; to apply a sharp to.

intransitive verb. To grow or become sharp.

verb. To make sharp

verb. make (images or sounds) sharp or sharper

verb. make sharp or sharper

verb. make (one's senses) more acute

verb. make crisp or more crisp and precise

verb. give a point to

verb. put (an image) into focus

verb. become sharp or sharper

verb. raise the pitch of (musical notes)

"On opposite sides of the country today, the presumptive presidential nominees will once again sharpen their positions on how to manage the conflicts in Iraq and Afghanistan if elected."

blunt  

intensify  

sarpened  sharpener  sharpening  

alter  change  compound  deepen  heighten  

tarpon  

6-foot  broncho-pneumonia  claustrophobe  co-occurrence  crab-like  

accelerate  aculeate  acuminate  agent provocateur  aggravate  

sharpened  sharpening  sharpens