Sharpen - Definition

v 1: make sharp or sharper; "sharpen the knives" [ant: blunt,
dull]
2: make crisp or more crisp and precise; "We had to sharpen our
arguments"
3: become sharp or sharper; "The debate sharpened"
4: put (an image) into focus; "Please focus the image; we cannot
enjoy the movie" [syn: focus, focalize, focalise,
sharpen] [ant: blear, blur]
5: make (images or sounds) sharp or sharper [ant: soften]
6: raise the pitch of (musical notes) [ant: drop, flatten]
7: give a point to; "The candles are tapered" [syn: sharpen,
taper, point]
8: make (one's senses) more acute; "This drug will sharpen your
vision" [syn: sharpen, heighten]