keener

adjective

1
Often with a prepositional phrase, or with to and an infinitive: showing a quick and ardent responsiveness or willingness; eager, enthusiastic, interested.
“I’m keen on computers.”
2
Fierce, intense, vehement.
“This boy has a keen appetite.”
3
Having a fine edge or point; sharp.
4
Acute of mind, having or expressing mental acuteness; penetrating, sharp.
5
Acrimonious, bitter, piercing.
“keen satire or sarcasm”
6
Of cold, wind, etc.: cutting, penetrating, piercing, sharp.
“a keen wind”
7
Of prices, extremely low as to be competitive.
8
Marvelous.
“I just got this peachy keen new dress.”
9
Brave, courageous; audacious, bold.

1
One who keens at a funeral.
2
Someone who is excessively keen or eager, possibly making others look bad; a brown-noser.

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