熱ねつ

ね

つ

Common wordJLPTN5Freq.FrequencyTop 2,000

Meanings

noun

heat; thermal energy

Physical heat, as in temperature, cooking, or physics.

夏なつの暑あつさで熱ねつがこもる。
Heat builds up in the summer heat.
熱ねつを加くわえると溶とける。
It melts when heat is applied.

noun

fever; high temperature

Body temperature above normal; often used with ある, 出る, 下がる, etc.

熱ねつがあるので、今日きょうは休やすみます。
I have a fever, so I'll take the day off.
子こ供どもの熱ねつが下さがらない。
The child's fever won't go down.

noun, suffix

zeal; passion; enthusiasm; craze

Intense emotional energy or enthusiasm; also used as a suffix for fads or obsessions (e.g., 〇〇熱).

彼かれは仕し事ごとに熱ねつを入いれている。
He puts passion into his work.
最さい近きん、キャンプ熱ねつがすごい。
Lately, the camping craze is intense.

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Usage patterns

〈物もの〉に熱ねつを加くわえるto apply heat to something
卵たまごに熱ねつを加くわえると固かたまる。
When you apply heat to an egg, it solidifies.
熱ねつがあるto have a fever
今日きょうは熱ねつがあるので学がっ校こうを休やすみます。
I have a fever today, so I'm staying home from school.
〈事こと〉に熱ねつを帯おびるfor something (e.g. a discussion) to become heated or intense
議ぎ論ろんはしだいに熱ねつを帯おびてきた。
The debate gradually became more heated.
熱ねつを出だすto run a fever
子こ供どもが夜よ中なかに熱ねつを出だした。
My child ran a fever in the middle of the night.
熱ねつが下さがるfor a fever to go down
薬くすりを飲のんで熱ねつが下さがった。
My fever went down after taking medicine.

Expressions· 11

熱ねつの壁かべheat barrier
熱ねつが入はいるget into; become passionate about; get fired up
熱ねつを測はかるtake someone's temperature
熱ねつが冷さめるlose interest; cool down; grow less enthusiastic
熱ねつを上あげるbecome enthusiastic; get carried away; have a crush on

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熱ねつを伝つたえるconduct heat; transmit heat
熱ねつを入いれるput effort into; do passionately; get fired up about
粗あら熱ねつをとるlet cool slightly after cooking

See all 11 in Explore →

Kanji

熱heat, temperature, fever

Related words· 9

温おん度どN4sense 1
温度 is the objective, measurable value of hot or cold, while 熱 often implies felt heat, cooking heat, or fever rather than a number.
情じょう熱ねつN1sense 3
情熱 is a more literary, specific word for deep emotional passion, while 熱 can casually describe any burst of enthusiasm or craze.
熱ねつ意いN2sense 3
熱意 is a formal word for earnest, sustained zeal (e.g. toward work), while 熱 is a broader, more everyday term for enthusiasm.
ヒート
熱 is the standard, all-purpose Japanese word for heat and fever, while ヒート has a more katakana, English-flavored feel and is used mainly in technical, sports, or branding contexts.

Show 5 more

発はつ熱ねつN1
熱 is the general noun for heat or a fever, while 発熱 specifically emphasizes the onset or generation of that heat.
微び熱ねつN1
熱 is the general word for fever or heat, while 微熱 specifies that the fever is mild or low-grade.
熱ねっ気きN1
熱 is the general word covering heat, fever, or passion, while 熱気 specifically points to hot air or a heated atmosphere.
熱ねつ病びょう
熱 is the everyday word for a fever or elevated body temperature, while 熱病 specifically names an illness whose defining symptom is high fever.
高こう熱ねつN1
熱 is the general, everyday word for a fever of any degree, while 高熱 specifically emphasizes that the fever is high.

Opposites

平へい熱ねつ sense 2
平熱 is one's normal body temperature, the opposite state of having 熱 (a fever).
寒さむさN1sense 1
寒さ is coldness, the opposite physical sensation to 熱 (heat).

Don't confuse with

暑あつさN1sense 1
暑さ describes hot weather or ambient heat, while 熱 refers to a body's fever or a substance's own thermal energy.
熱ねつ量りょうN1
熱 refers to heat itself (or a fever), while 熱量 is the measurable quantity of that heat, not the heat or fever directly.
体たい温おんN3
熱 usually implies an abnormally high temperature (a fever), whereas 体温 is the neutral term for whatever temperature the body currently is.

Word family· 249

情じょう熱ねつN1
passion; enthusiasm; zeal
熱ねっ心しんN4
enthusiastic; eager; zealous
熱ねっ中ちゅうN3
be absorbed in; be enthusiastic about; be devoted to
加か熱ねつN3
heating; application of heat
熱ねっ狂きょう
wild enthusiasm; frenzy; craze

Show 25 more

熱ねつ意いN2
zeal; enthusiasm; ardor
発はつ熱ねつN1
generation of heat; heat production · fever; pyrexia
熱ねっ帯たいN3
tropics; tropical zone
白はく熱ねつN1
white heat; incandescence; white glow · heated; excited; climactic
灼しゃく熱ねつ
red-hot; scorching heat; burning heat · burning (love); passionate (debate); ardent
熱ねつ烈れつN1
ardent; passionate; vehement
熱ねっ血けつ
hot blood; warm blood · zeal; fervor; enthusiasm; ardor
高こう熱ねつN1
high fever · intense heat; high temperature
熱ねつ量りょうN1
quantity of heat; calorific value · enthusiasm; passion; zeal
断だん熱ねつ
thermal insulation; heat insulation
熱ねっ気きN1
heat; hot air · enthusiasm; excitement; fervor · fever
熱ねっ湯とうN1
boiling water; very hot water
耐たい熱ねつ
heat-resistant; heatproof
熱ねつ愛あい
passionate love; devotion
熱ねっするN3
heat; heat up · get excited; get worked up; get fired up
地ち熱ねつ
geothermal energy; terrestrial heat
熱ねつ望ぼう
ardent wish; burning desire; longing
熱ねっ唱しょう
singing enthusiastically; passionate singing
過か熱ねつ
overheating; excessive heating · superheating (physics) · overheating (figurative); going to excess; running too hot
熱ねつ源げん
heat source
熱ねっ帯たい魚ぎょ
tropical fish
光こう熱ねつ
light and heat; energy (for lighting and heating)
微び熱ねつN1
slight fever; low-grade fever
熱ねっ風ぷう
hot wind; hot air
放ほう熱ねつ
heat radiation; heat dissipation; radiant heat

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Written forms

熱ねつUsage100%
Standard kanji spelling for all senses.
ねつUsage1%
Kana spelling is common in casual writing, especially for the fever sense.

Etymology

The kanji 熱 is a phono-semantic compound with 火 (fire) and 埶 (a phonetic component). The word ねつ is a Sino-Japanese reading (on'yomi) of this character.