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.

Noun

(en noun)

A small and rather deep collection of (usually) fresh water, as one supplied by a spring, or occurring in the course of a stream; a reservoir for water.

the pools of Solomon

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* (rfdate) :

Charity will hardly water the ground where it must first fill a pool .

* (rfdate) :

The sleepy pool above the dam.

A small body of standing or stagnant water; a puddle.

* (rfdate) :

The filthy mantled pool beyond your cell.

A swimming pool.

A supply of resources.

Noun

(en noun)

(uncountable) A game at billiards, in which each of the players stakes a certain sum, the winner taking the whole; also, in public billiard rooms, a game in which the loser pays the entrance fee for all who engage in the game; a game of skill in pocketing the balls on a pool table.

* (rfdate) (William Makepeace Thackeray):

He plays pool at the billiard houses.

In rifle shooting, a contest in which each competitor pays a certain sum for every shot he makes, the net proceeds being divided among the winners.

Any gambling or commercial venture in which several persons join.

The stake played for in certain games of cards, billiards, etc.; an aggregated stake to which each player has contributed a share; also, the receptacle for the stakes.

A combination of persons contributing money to be used for the purpose of increasing or depressing the market price of stocks, grain, or other commodities; also, the aggregate of the sums so contributed.

The pool took all the wheat offered below the limit.

He put $10,000 into the pool .

(rail transport) A mutual arrangement between competing lines, by which the receipts of all are aggregated, and then distributed pro rata according to agreement.

(legal) An aggregation of properties or rights, belonging to different people in a community, in a common fund, to be charged with common liabilities.