Heat vs Cool - What's the difference?

As nouns the difference between heat and cool

is that heat is thermal energy while cool is a moderate or refreshing state of cold; moderate temperature of the air between hot and cold; coolness.

As verbs the difference between heat and cool

is that heat is to cause an increase in temperature of an object or space; to cause something to become hot often with "up" while cool is to lose heat, to get colder.

As an adjective cool is

having a slightly low temperature; mildly or pleasantly cold.

As an acronym COOL is

CLIPS Object-Oriented Language

heat
English

Etymology 1
From (etyl) hete, from (etyl) .
Noun

(uncountable) Thermal energy.

* 2007 , James Shipman, Jerry Wilson, Aaron Todd, An Introduction to Physical Science: Twelfth Edition , pages 106–108:

Heat' and temperature, although different, are intimately related. [...] For example, suppose you added equal amounts of ' heat to equal masses of iron and aluminum. How do you think their temperatures would change?if the temperature of the iron increased by 100 C°, the corresponding temperature change in the aluminum would be only 48 C°.

* {{quote-magazine, year=2013, month=July-August, author=(Henry Petroski)
, title= Geothermal Energy , volume=101, issue=4, magazine=(American Scientist) , passage=Energy has seldom been found where we need it when we want it. Ancient nomads, wishing to ward off the evening chill and enjoy a meal around a campfire, had to collect wood and then spend time and effort coaxing the heat of friction out from between sticks to kindle a flame.}}

(uncountable) The condition or quality of being hot.

(uncountable) An attribute of a spice that causes a burning sensation in the mouth.

(uncountable) A period of intensity, particularly of emotion.

(uncountable) An undesirable amount of attention.

(uncountable, slang) The police.

(uncountable, slang) One or more firearms.

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(countable, baseball) A fastball.

(uncountable) A condition where a mammal is aroused sexually or where it is especially fertile and therefore eager to mate.

(countable) A preliminary race, used to determine the participants in a final race

(countable) One cycle of bringing metal to maximum temperature and working it until it is too cool to work further.

(countable) A hot spell.

(uncountable) Heating system; a system that raises the temperature of a room or building.

(uncountable) The output of a heating system.

Derived terms
* heat capacity * heat death * heat engine * heat exchanger * heat lamp * heatproof * heat pump * heat rash * heat-resistant * heat-seeking * heat shield * heat sink * heatstroke * heat treatment * heatwave * in heat * on heat
Etymology 2
From (etyl) heten, from (etyl) .
Verb
(en verb)
To cause an increase in temperature of an object or space; to cause something to become hot (often with "up").

I'll heat up the water.

To excite or make hot by action or emotion; to make feverish.

* Shakespeare:

Pray, walk softly; do not heat your blood.

To excite ardour in; to rouse to action; to excite to excess; to inflame, as the passions.

* Dryden:

A noble emulation heats your breast.

To arouse, to excite (sexually).

The massage heated her up.

Synonyms
* stoke * warm up * heat up; hot up,
Anagrams
* English causative verbs
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 ----