sharpness or cutting ability / astuteness or sagacity / eagerness or enthusiasm

plural of keenness

simple past tense and past participle of keen

Obsolete form of keen.

An English surname from Old English, a variant of Keen. / A surname from Irish, a variant of Keane. / A city, the county seat of Cheshire County, New Hampshire; named for British diplomat Benjamin Keene.

plural of keening

plural of Keen

A surname.

(chiefly Commonwealth of Nations) Often with a prepositional phrase, or with to and an infinitive: showing a quick and ardent responsiveness or willingness; eager, enthusiastic, interested.

(transitive, rare) To make cold, to sharpen.