Cool vs Keen - What's the difference?

In transitive terms the difference between cool and keen

is that cool is to make less intense, e.g. less amicable or passionate while keen is to mourn.

As adjectives the difference between cool and keen

is that cool is having a slightly low temperature; mildly or pleasantly cold while keen is showing a quick and ardent willingness or responsiveness, enthusiastic, eager; interested, intense.

As nouns the difference between cool and keen

is that cool is a moderate or refreshing state of cold; moderate temperature of the air between hot and cold; coolness while keen is a prolonged wail for a deceased person.

As verbs the difference between cool and keen

is that cool is to lose heat, to get colder while keen is to sharpen; to make cold.

As an acronym COOL

is CLIPS Object-Oriented Language

cool
English

Alternative forms
* (slang) coo, kewl, kool, qewl, qool
Etymology 1
From (etyl), from (etyl) . Related to (l).
Adjective
(er)
Having a slightly low temperature; mildly or pleasantly cold.

*
, title=(The Celebrity), chapter=8 , passage=The day was cool and snappy for August, and the Rise all green with a lavish nature. Now we plunged into a deep shade with the boughs lacing each other overhead, and crossed dainty, rustic bridges over the cold trout-streams, the boards giving back the clatter of our horses' feet:
Allowing or suggesting heat relief.

* {{quote-book, year=1963, author=(Margery Allingham), title=(The China Governess)
, chapter=2 citation , passage=Now that she had rested and had fed from the luncheon tray Mrs. Broome had just removed, she had reverted to her normal gaiety. She looked cool in a grey tailored cotton dress with a terracotta scarf and shoes and her hair a black silk helmet.}}
Of a person, not showing emotion, calm and in self-control.

Unenthusiastic, lukewarm, skeptical.

Calmly audacious.

* (Nathaniel Hawthorne) (1804-1864)

Its cool stare of familiarity was intolerable.

* 1944 November 28, Irving Brecher and Fred F. Finklehoffe, Meet Me in St. Louis , Metro-Goldwyn-Mayer:

My father was talking to the World's Fair Commission yesterday, and they estimate it's going to cost a cool fifty million.

(label) Of a person, knowing what to do and how to behave; considered popular by others.

(label) In fashion, part of or fitting the in crowd; originally hipster slang.

* 2008 , Lou Schuler, "Foreward", in'' Nate Green, ''Built for Show , page xii

The fact that I was middle-aged, bald, married, and raising girls instead of chasing them didn't really bother me. Muscles are cool at any age.

(label) Of an action, all right; acceptable; that does not present a problem.

(label) A dismissal of a comment perceived as boring or pointless.

(label) Of a person, not upset by circumstances that might ordinarily be upsetting.

* (Henry Fielding) (1707-1754)

He had lost a cool hundred.

* (Charles Dickens) (1812-1870)

leaving a cool four thousand to Mr. Matthew Pocket

Synonyms
* (having a slightly low temperature) chilly * (not showing emotion) distant, phlegmatic, standoffish, unemotional * (in fashion) ** (standard) , fashionable, in fashion, modish, stylish ** (colloquial or slang) happening, hip, in, trendy * (acceptable) acceptable, all right, OK * (not upset) easy, fine, not bothered, not fussed'''
Antonyms
* (having a slightly low temperature) lukewarm, tepid, warm * (not showing emotion) passionate * (knowing what to do and how to behave) awkward, uncool * (in fashion) , old hat, out, out of fashion * (acceptable) not cricket (UK), not on, unacceptable * (not upset) bothered, upset * (unenthusiastic) warm
Derived terms
* cool head * coolish * coolly * coolness * keep one's cool * lose one's cool * uncool
Quotations
* The earliest use of the word in this way seems to be in ' "The Moonstone" 1868: *: "She has been a guest of yours at this house," I answered. "May I venture to suggest — if nothing was said about me beforehand — that I might see her here?" *: "Cool!" said Mr. Bruff. With that one word of comment on the reply that I had made to him, he took another turn up and down the room. *: "In plain English," he said, "my house is to be turned into a trap to catch Rachel ... * In 1602, Shakespeare wrote that Queen Gertrude told Hamlet: *: "O gentle son, Upon the heat and flame of thy distemper, Sprinkle cool patience."
Noun
(-)
A moderate or refreshing state of cold; moderate temperature of the air between hot and cold; coolness.

in the cool of the morning

A calm temperament.

Synonyms
*(calm temperament) calmness, composure
Etymology 2
From (etyl) colen, from (etyl) , altered to resemble the adjective cool. See (l).
Verb
(en verb)
(literally) To lose heat, to get colder.

I like to let my tea cool before drinking it so I don't burn my tongue.

To make cooler, less warm.

* Bible, Luke xvi. 24:

Send Lazarus, that he may dip the tip of his finger in water, and cool my tongue.

(figuratively) To become less intense, e.g. less amicable or passionate.

Relations cooled between the USA and the USSR after 1980.

To make less intense, e.g. less amicable or passionate.

* Shakespeare:

We have reason to cool our raging motions, our carnal stings, our unbitted lusts.

Derived terms
* coolant * cooler * cooling * cool off * cool down * cool it * cool one's heels * cool one's jets
Anagrams
* * 1000 English basic words ----
keen
English

Etymology 1
From (etyl) . More at (l), (l).
Alternative forms
* keene, kene (archaic)
Adjective
(er)
showing a quick and ardent willingness or responsiveness, enthusiastic, eager; interested, intense.

vehement; fierce; as, a keen appetite.

* (rfdate),

Of full keen will.

* (rfdate), Shakespeare

So keen and greedy to confound a man.

sharp; having a fine edge or point.

* (rfdate) :

That my keen knife see not the wound it makes.

acute of mind; sharp; penetrating; having or expressing mental acuteness.

* (rfdate),

To make our wits more keen .

* (rfdate),

Before the keen inquiry of her thought.

bitter; piercing; acrimonious; cutting; stinging; severe; as, keen satire or sarcasm.

* (rfdate)

Good father cardinal, cry thou amen to my keen curses.

piercing; penetrating; cutting; sharp; -- applied to cold, wind, etc,; as, a keen wind; the cold is very keen.

* (rfdate),

Breasts the keen air, and carols as he goes.

Enthusiastic

I'm keen to learn another language.

I'm keen on learning another language.

I'm keen on languages.

I'm keen about learning languages.

I'm keen for help.

''"Do you want to learn another language?" / "I'm keen ."

(US, informal, dated) Marvelous.

I just got this peachy keen new dress.

(UK) extremely low as to be competitive.

keen prices

(obsolete) brave, courageous; bold, audacious.

Usage notes
* Keen is often used in the composition of words, most of which are of obvious signification; as, keen-edged, keen-eyed, keen-sighted, keen-witted, etc.
Synonyms
* prompt; eager; ardent; sharp; acute; cutting; penetrating; biting; severe; sarcastic; satirical; piercing; shrewd. * See also
Derived terms
* keen-witted * keen as mustard * keen on * keenly * keenness
Verb
(en verb)
(rare) To sharpen; to make cold.

* (rfdate), Thomson.

Cold winter keens the brightening flood.

Etymology 2
From (etyl) .
Noun
(en noun)
A prolonged wail for a deceased person.

* '>citation

Verb
(en verb)
To utter a keen.

* (rfdate) Stuart Howard-Jones (1904-1974), Hibernia.'' Collected in ''The New Oxford Book of English Light Verse, 1978.

Keen —meaning 'brisk'? Nay, here the Language warps:
'Tis singing bawdy Ballads to a Corpse.

To utter with a loud wailing voice or wordless cry.

*

To mourn.

*

Related terms
* keener * keeness
Anagrams
* ----