1. Adjective
To make sharp.
2. Adjective
To give a keen edge or fine point to; to make sharper; as, to sharpen an ax, or the teeth of a saw.
3. Adjective
To render more quick or acute in perception; to make more ready or ingenious.
4. Adjective
To make more eager; as, to sharpen men's desires.
5. Adjective
To make more pungent and intense; as, to sharpen a pain or disease.
6. Adjective
To make biting, sarcastic, or severe.
7. Adjective
To render more shrill or piercing.
8. Adjective
To make more tart or acid; to make sour; as, the rays of the sun sharpen vinegar.
9. Adjective
To raise, as a sound, by means of a sharp; to apply a sharp to.
10. Verb
To grow or become sharp.
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