Definiciones
1.AdjectiveOften 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.; I’m keen on you.; She’s keen to learn another language.; “Do you want to go on holiday with me?” “Yes, I’m keen.”"
2.AdjectiveFierce, intense, vehement."This boy has a keen appetite."
3.AdjectiveHaving a fine edge or point; sharp.
4.AdjectiveAcute of mind, having or expressing mental acuteness; penetrating, sharp.
5.AdjectiveAcrimonious, bitter, piercing."keen satire or sarcasm"
6.AdjectiveOf cold, wind, etc.: cutting, penetrating, piercing, sharp."a keen wind; the cold is very keen"
7.AdjectiveOf prices, extremely low as to be competitive.
8.AdjectiveMarvelous."I just got this peachy keen new dress."
9.AdjectiveBrave, courageous; audacious, bold.
10.VerbTo make cold, to sharpen.
11.NounA prolonged wail for a deceased person.
12.VerbTo utter a keen.
13.VerbTo utter with a loud wailing voice or wordless cry.
14.VerbTo mourn.