Definition of "keen"
adjective:
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Showing a quick and ardent willingness or responsiveness, enthusiastic, eager; interested, intense.
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Vehement; fierce; as, a keen appetite.
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Sharp; having a fine edge or point.
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Acute of mind; sharp; penetrating; having or expressing mental acuteness.
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Bitter; piercing; acrimonious; cutting; stinging; severe; as, keen satire or sarcasm.
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Piercing; penetrating; cutting; sharp; -- applied to cold, wind, etc,; as, a keen wind; the cold is very keen.
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Enthusiastic.
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Marvelous.
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Extremely low as to be competitive.
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Brave, courageous; bold, audacious.
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verb:
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To sharpen; to make cold.
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To utter a keen.
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To utter with a loud wailing voice or wordless cry.
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To mourn.
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noun:
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A prolonged wail for a deceased person.
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