heat

verb
\ ˈhēt How to pronounce heat (audio) \
heated; heating; heats

Definition of heat

 (Entry 1 of 2)

intransitive verb

1 : to become warm or hot water heating in a kettle
2 : to start to spoil from heat

transitive verb

1 : to make warm or hot heat a can of soup heat the oven to 350 degrees
2 : excite were heated by his stirring words

heat

noun

Definition of heat (Entry 2 of 2)

1a(1) : a condition of being hot : warmth snow melting in the heat of the sun
(2) : a marked or notable degree of hotness The heat was intense.
b : pathological excessive bodily temperature the heat of the fever
c : a hot place or situation get out of the heat
d(1) : a period of heat an unbroken heat
(2) : a single complete operation of making something warm or hot also : the quantity of material so heated
e(1) physics : added energy that causes substances to rise in temperature, fuse, evaporate, expand, or undergo any of various other related changes, that flows to a body by contact with or radiation from bodies at higher temperatures, and that can be produced in a body (as by compression)
(2) physics : the energy associated with the random motions of the molecules, atoms, or smaller structural units of which matter is composed
f : appearance, condition, or color of something as indicating its temperature when the rod is at the proper welding heat
2a : intensity of feeling or reaction : passion answered with considerable heat
b : the height or stress of an action or condition in the heat of battle
c : sexual excitement especially in a female mammal like an animal in heat specifically : estrus
3 : a single continuous effort: such as
a : a single round of a contest (such as a race) having two or more rounds for each contestant won two heats out of three
b : one of several preliminary contests held to eliminate less competent contenders won the second heat but finished third in the final race
4 : pungency of flavor Add some cayenne pepper for extra heat.
5a slang
(1) : the intensification of law-enforcement activity or investigation waited until the heat was off
(2) : police
b : pressure, coercion turn up the heat on your congressperson
c : abuse, criticism took heat for her mistakes
6 baseball : smoke sense 8 throwing some heat
7 slang : gun sense 1b was packing heat

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Other Words from heat

Verb

heatable \ ˈhē-​tə-​bəl How to pronounce heat (audio) \ adjective

Noun

heatless \ ˈhēt-​ləs How to pronounce heat (audio) \ adjective
heatproof \ ˈhēt-​ˌprüf How to pronounce heat (audio) \ adjective

Synonyms & Antonyms for heat

Synonyms: Verb

Synonyms: Noun

Antonyms: Verb

Antonyms: Noun

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Examples of heat in a Sentence

Verb I heated the vegetables in the microwave. They heat their house with a wood stove. Noun The sun's heat melted the snow. the intense heat of a fire She applied heat to the sore muscles in her leg. a period of high heat and humidity The crops were damaged by drought and extreme heat. Cook the milk over low heat. Remove the pan from the heat.
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Recent Examples on the Web: Verb Those who heat with electricity could see 6 percent increases. NBC News, 15 Oct. 2021 The search figures to heat up late in the season and conclude shortly after the Huskies’ season finale vs. Houston on Nov. 27. Dom Amore, courant.com, 14 Oct. 2021 Other daily activities, like cooking and showering can help heat the home. Kaylee Staral, Milwaukee Journal Sentinel, 14 Oct. 2021 Current energy policies will still put the world on track to heat up roughly 2.6 degrees Celsius (4.7 degrees Fahrenheit) by 2100 compared to preindustrial levels, the report found. New York Times, 13 Oct. 2021 Methane is the second most prevalent greenhouse gas after carbon dioxide but much more potent in the short-term in its ability to heat the planet. BostonGlobe.com, 12 Oct. 2021 Think of how much energy is needed to heat and cool 7,000 hotels (with nearly 3,000 on the way), many of which are in tropical parts of the world. Jennifer Leigh Parker, Forbes, 11 Oct. 2021 In an amicus brief filed in federal court in May, Canada said residents of Quebec and Ontario rely on Line 5 to fuel their cars and heat their homes. The Editorial Board, WSJ, 10 Oct. 2021 However, while the central bank has projected inflation at 5.2% in the next financial year, its estimates show that consumer prices may heat up by the March quarter. Mimansa Verma, Quartz, 8 Oct. 2021 Recent Examples on the Web: Noun Some species, including wild salmon, are particularly vulnerable to extreme heat. Neil Russell, Fortune, 17 Oct. 2021 Cover and continue to cook on low heat for 45 minutes. Darlene Zimmerman, Detroit Free Press, 17 Oct. 2021 So far, the revolt over politically correct and anti-American curricula has produced more heat than light. Matthew Continetti, National Review, 16 Oct. 2021 Do water bottles leach a cancer-causing chemical when exposed to extreme heat? Sudiksha Kochi, USA TODAY, 16 Oct. 2021 The state’s own climate plan calls for a different direction, relying on supplying the electrical grid with renewable energy and converting homes to electric heat. BostonGlobe.com, 15 Oct. 2021 About 4 in 10 households in the U.S. use electricity for heat. Irina Ivanova, CBS News, 14 Oct. 2021 October 2019 broke three records for high heat: Oct. 1, 2019: 95 degrees. Emily Deletter, The Enquirer, 14 Oct. 2021 Simmer on low heat until all of the ingredients are tender, 30 to 45 minutes. Isaiah Martinez, San Francisco Chronicle, 14 Oct. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'heat.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of heat

Verb

before the 12th century, in the meaning defined at intransitive sense 1

Noun

before the 12th century, in the meaning defined at sense 1a(1)

History and Etymology for heat

Verb

Middle English heten, going back to Old English hǣtan, going back to Germanic *haitjan- (whence also Middle Dutch hēten "to make warm," Old High German heizen, Old Norse heita "to make hot, brew"), derivative of *haita- "having a high temperature, burning" — more at hot entry 1

Noun

Middle English hete, going back to Old English hǣtu, going back to Germanic *haitīn- (whence also Old Frisian hēte "high temperature, heat," Old High German heizi), noun derivative from *haita- "having a high temperature, burning" — more at hot entry 1

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Time Traveler for heat

Time Traveler

The first known use of heat was before the 12th century

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Statistics for heat

Last Updated

18 Oct 2021

Cite this Entry

“Heat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat. Accessed 28 Oct. 2021.

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More Definitions for heat

heat

verb

English Language Learners Definition of heat

 (Entry 1 of 2)

: to cause (something) to become warm or hot

heat

noun

English Language Learners Definition of heat (Entry 2 of 2)

: energy that causes things to become warmer
: hot weather or temperatures
: the level of temperature that is used to cook something

heat

verb
\ ˈhēt How to pronounce heat (audio) \
heated; heating

Kids Definition of heat

 (Entry 1 of 2)

: to make or become warm or hot

heat

noun

Kids Definition of heat (Entry 2 of 2)

1 : a condition of being hot : warmth We enjoyed the heat of the fire.
2 : hot weather heat and humidity
3 : a form of energy that causes an object to rise in temperature
4 : strength of feeling or force of action In the heat of anger, I said some cruel things.
5 : a single race in a contest that includes two or more races

heat

intransitive verb
\ ˈhēt How to pronounce heat (audio) \

Medical Definition of heat

 (Entry 1 of 2)

: to become warm or hot

transitive verb

: to make warm or hot

heat

noun

Medical Definition of heat (Entry 2 of 2)

1a : the state of a body or of matter that is perceived as opposed to cold and is characterized by elevation of temperature : a condition of being hot especially : a marked or notable degree of this state : high temperature
b(1) : a feverish state of the body : pathological excessive bodily temperature (as from inflammation) knew the throbbing heat of an abscess the heat of the fever
(2) : a warm flushed condition of the body (as after exercise) : a sensation produced by or like that produced by contact with or approach to heated matter
c(1) : added energy that causes substances to rise in temperature, fuse, evaporate, expand, or undergo any of various other related changes, that flows to a body by contact with or radiation from bodies at higher temperatures, and that can be produced in a body (as by compression)
(2) : the energy associated with the random motions of the molecules, atoms, or smaller structural units of which matter is composed
2 : sexual excitement especially in a female mammal specifically : estrus

More from Merriam-Webster on heat

Nglish: Translation of heat for Spanish Speakers

Britannica English: Translation of heat for Arabic Speakers

Britannica.com: Encyclopedia article about heat

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