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Thesaurus: keen

Sharp; having a fine edge or point; as, a keen razor, or a razor with a keen edge.

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  1. superl. Sharp; having a fine edge or point; as, a keen razor, or a razor with a keen edge.
  2. superl. Acute of mind; sharp; penetrating; having or expressing mental acuteness; as, a man of keen understanding; a keen look; keen features.
  3. superl. Bitter; piercing; acrimonious; cutting; stinging; severe; as, keen satire or sarcasm.
  4. superl. Piercing; penetrating; cutting; sharp; -- applied to cold, wind, etc, ; as, a keen wind; the cold is very keen.
  5. superl. Eager; vehement; fierce; as, a keen appetite.
  6. v. t. To sharpen; to make cold.
  7. n. A prolonged wail for a deceased person. Cf. Coranach.
  8. v. i. To wail as a keener does.
  9. adj. having or demonstrating ability to recognize or draw fine distinctions
  10. adj. intense or sharp
  11. adj. excellent
  12. adj. painful as if caused by a sharp instrument