keen [keen] (previously 01-26-13)
1. finely sharpened, as an edge; so shaped as to cut or pierce substances readily: a keen razor.
2. sharp, piercing, or biting: a keen wind; keen satire.
3. characterized by strength and distinctness of perception; extremely sensitive or responsive: keen eyes; keen ears.
4. having or showing great mental penetration or acumen: keen reasoning; a keen mind.
5. animated by or showing strong feeling or desire: keen competition.
6. intense, as feeling or desire: keen ambition; keen jealousy.
7. eager; interested; enthusiastic (often followed by about, on, etc., or an infinitive): She is really keen on going swimming.
8. Slang. great; wonderful; marvelous.
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1, 4. See sharp.
2. cutting, bitter, caustic.
3. piercing, penetrating, acute.
4. discerning, acute, astute, sagacious, shrewd, clever.
5. See avid.
7. earnest, fervid.
1, 3, 4. dull.
Origin: before 900; 1930–35 for def. 8; Middle English kene, Old English cene; cognate with German kühn, Old High German chuoni bold, Old Norse kœnn wise, skillful
Keen (noun, verb)
1. a wailing lament for the dead.
verb (used without object)
2. to wail in lamentation for the dead.
verb (used with object)
3. to mourn for by or with such keening or wailing: keening his mother while kneeling at her grave.
Origin: 1805-15; < Irish caoine (noun), caoin- (v., stem of caoinim) lament
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