KEEN

Definitions

1. 1. Sharp; having a fine edge or point; as, a keen razor, or a razor with a keen edge. A bow he bare and arwes [arrows] bright and kene. Chaucer. That my keen knife see not the wound it makes. Shak.
2. 2. Acute of mind; sharp; penetrating; having or expressing mental acuteness; as, a man of keen understanding; a keen look; keen features. To make our wits more keen. Shak. Before the keen inquiry of her thought. Cowper.
3. 3. Bitter; piercing; acrimonious; cutting; stinging; severe; as, keen satire or sarcasm. Good father cardinal, cry thou amen To my keen curses. Shak.
4. 4. Piercing; penetrating; cutting; sharp; -- applied to cold, wind, etc, ; as, a keen wind; the cold is very keen. Breasts the keen air, and carols as he goes. Goldsmith.
5. 5. Eager; vehement; fierce; as, a keen appetite. "Of full kene will." Piers Plowman. So keen and greedy to confound a man. Shak.