Sharpen /(?)/

imp. & p. p. Sarpened; p. pr. & vb. n. Sharpening

1. To make sharp.

   The air . . . sharpened his visual ray To objects distant far.

   He that wrestles with us strengthens our nerves and sharpens our skill.

2. To make more eager; as, to sharpen men's desires.

   Epicurean cooks Sharpen with cloyless sauce his appetite.

3. To make more pungent and intense; as, to sharpen a pain or disease.

   Inclosures not only preserve sound, but increase and sharpen it.

4. To make more tart or acid; to make sour; as, the rays of the sun sharpen vinegar. (Mus.)

1. To grow or become sharp.