Definition of Keen

Noun

• a funeral lament sung with loud wailing
  

Verb

• express grief verbally
  "we lamented the death of the child"
  lament

Adjective

• having a sharp cutting edge or point
  "a keen blade"
  
• 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"
  cutting knifelike piercing stabbing lancinate lancinating
• very good
  "he did a bully job"
  "a neat sports car"
  "had a great time at the party"
  "you look simply smashing"
  - bang up bully corking cracking dandy great groovy neat nifty - not bad peachy - slap up swell smashing
• intense or sharp
  "suffered exquisite pain"
  "felt exquisite pleasure"
  exquisite
• 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"
  acute discriminating incisive knifelike penetrating penetrative piercing sharp

• Scrabble® score of the keen (8)
• Word Chums® score of the keen (10)
• Words With Friends® score of the keen (9)