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Definitions of keen

1. having or demonstrating ability to recognize or draw fine distinctions; "an acute observer of politics and politicians"; "incisive comments"; "icy knifelike reasoning"; "as sharp and incisive as the stroke of a fang"; "penetrating insight"; "frequent penetrative observations" Wordnet Dictionary DB

2. (informal) very good; "a bully pulpit"; "a neat sports car"; "had a great time at the party"; "you look simply smashing" Scrapingweb Dictionary DB

3. intense or sharp; "suffered exquisite pain"; "felt exquisite pleasure" Scrapingweb Dictionary DB

4. very penetrating and clear and sharp in operation; "an incisive mind"; "a keen intelligence"; "of sharp and active intellect" Scrapingweb Dictionary DB

5. (Irish) a funeral lament sung with loud wailing Scrapingweb Dictionary DB

6. having a sharp cutting edge or point; "a keen blade" Scrapingweb Dictionary DB

7. as physically painful as if caused by a sharp instrument; "a cutting wind"; "keen winds"; "knifelike cold"; "piercing knifelike pains"; "piercing cold"; "piercing criticism"; "a stabbing pain"; "lancinating pain" Scrapingweb Dictionary DB

8. a funeral lament sung with loud wailing Wordnet Dictionary DB

9. express grief verbally; "we lamented the death of the child" Wordnet Dictionary DB

10. very good; "he did a bully job"; "a neat sports car"; "had a great time at the party"; "you look simply smashing" Wordnet Dictionary DB

11. Sharp; having a fine edge or point; as, a keen razor, or a razor with a keen edge. Webster Dictionary DB

12. Acute of mind; sharp; penetrating; having or expressing mental acuteness; as, a man of keen understanding; a keen look; keen features. Webster Dictionary DB

13. Bitter; piercing; acrimonious; cutting; stinging; severe; as, keen satire or sarcasm. Webster Dictionary DB

14. Eager; vehement; fierce; as, a keen appetite. Webster Dictionary DB

15. To sharpen; to make cold. Webster Dictionary DB

16. A prolonged wail for a deceased person. Cf. Coranach. Webster Dictionary DB

17. To wail as a keener does. Webster Dictionary DB

18. Piercing; penetrating; cutting; sharp; - applied to cold, wind, etc, ; as, a keen wind; the cold is very keen. Webster Dictionary DB

19. Sharp; eager; as keen interest; piercing; bitter; as, keen wind; acute. The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919.

20. Keenly. The Concise Standard Dictionary of the English Language. By James Champlin Fernald. Published 1919.

21. Keenness. The Concise Standard Dictionary of the English Language. By James Champlin Fernald. Published 1919.

22. Eager: sharp, having a fine edge: piercing: acute of mind: penetrating. The american dictionary of the english language. By Daniel Lyons. Published 1899.

23. Eager; piercing; sharp. The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894.

24. Very sharp and cutting; acute; shrewd. The Concise Standard Dictionary of the English Language. By James Champlin Fernald. Published 1919.

25. Eager; sharp; having a very fine edge; piercing; severe; bitter; acute of mind. Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914.

26. Eager; sharp; fine-edged; piercing; bitter; acute. Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.

27. Piercing; penetrating; cutting; sharp; -- applied to cold, wind, etc, ; as, a keen wind; the cold is very keen. mso.anu.edu.au

28. k[=e]n, adj. eager: sharp, having a fine edge: piercing: acute of mind: penetrating: intense.--adv. KEEN'LY.--n. KEEN'NESS. [A.S. céne; Ger. kühn, bold; Ice. kænn, wise. Cog. with ken and can.] gutenberg.org/ebooks/37683

29. k[=e]n, n. a lamentation over the dead.--v.i. to wail over the dead.--n. KEEN'ER, a professional mourner. [Ir. caoine.] gutenberg.org/ebooks/37683

30. Irish funeral song accompanied with wailing. Concise Oxford Dictionary

31. Utter the keen; bewail (person) thus; utter in wailing tone. Concise Oxford Dictionary

32. Having sharp edge or point; (of edge &c.) sharp; (of sound, light, &c.) penetrating, vivid, strong; (of cold) intense; (of pain &c.) acute, bitter; (of person, desire, interest) eager, ardent, (colloq. on thing, on doing); (of eyes, sight, smell) sharp, highly sensitive; intellectually acute; k.-set, hungry, eager, (for). Hence keenly adv., keenness n. [old English] Concise Oxford Dictionary