adjective, keen·er, keen·est.
- keeling islands,
- keen about, be,
- keene's cement,
Origin of keen1
verb (used without object)
verb (used with object)
Origin of keen2
Examples from the Web for keen
Would a state with a keen understanding of the power of propaganda be so willing to just throw away such a trove of information?
Manttan is keen to carry out research on that Burmese side of the railway as his father worked on that section.
And because millions of us are so keen to do just that, our behavioral habits are changing.
The Telegraph reports that he is fluent in Swahili and a keen zoologist.How A British Aristocrat Used Big Game Hunter’s Sperm To Get Pregnant Without His Permission|Tom Sykes|December 2, 2014|DAILY BEAST
What results is a kind of mashup concert, a virtuoso mixed-media DJ set tuned to a keen emotional pitch.War Is About More Than Heroes, Martyrs, and Patriots|Nathan Bradley Bethea|November 12, 2014|DAILY BEAST
His eyelids droop slightly, but his eyes are keen and his expression astute.Loyalties (Fifth Series Plays)|John Galsworthy
He looked at her keen, questioning, and she bleached to the lips.The Lost Pibroch|Neil Munro
Beneath this disguise was concealed a keen knowledge of art, combined with a ferocious skill in bargaining.A Zola Dictionary|J. G. Patterson
Alice darted a keen look on the Duke, as if to read his meaning; another on Charles, to know whether she had guessed it rightly.Peveril of the Peak|Sir Walter Scott
But perhaps the surprise, annoyance and keen disappointment broke his soldierly heart.
Word Origin for keen
Word Origin for keen
c.1200, from Old English cene "bold brave," later "clever, wise," from Proto-Germanic *kan- "be able to" (see can). Original prehistoric senses seem to have been both "brave" and "skilled;" cognate with Old Norse kænn "skillful, wise," Middle Dutch coene "bold," Dutch koen, Old High German kuon "pugnacious, strong," German kühn "bold, daring." Sense of "eager" is from mid-14c. The meaning "sharp" is peculiar to English: of blades and edges early 13c., of sounds c.1400, of eyesight c.1720. A popular word of approval in teenager and student slang from c.1900.
"lament," 1811, from Irish caoinim "I weep, wail, lament," from Old Irish coinim "I wail." Related: Keened; keening. As a noun from 1830.