(fèi): to boil

(fèi) is a Chinese character meaning “to boil.” Classified as HSK Level 7-9 (HSK 3.0 Standard, CLEC 2022), it is composed of (semantic) and (phonetic). It ranks #2563 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, water. Its radical form (water) appears in many related characters such as (shuǐ, water), (hàn, Han ethnic group), (, steam).

Native pronunciation

Definitions

  1. to boil

Etymology & Origin

pictophoneticwater

Decomposition: ⿰氵弗 (layout: left-right)

Stroke Order

1
2
3
4
5
6
7
8

Practice writing with real-time feedback — trace each stroke in the correct order and build muscle memory in the HanziFeed app.

Words & Compounds

Common Compounds

WordPinyinMeaning
fèi téng(of a liquid) to boil
fèi fèi yáng yángbubbling and gurgling
zhǔ fèito boil
fèi shuǐboiling water
fèi diǎnboiling point
rén shēng dǐng fèilit. a boiling cauldron of voices (idiom)
rè xuè fèi téng(idiom) to be fired up
yǐ tāng wò fèito manage a situation badly (idiom)
mín yuàn fèi téngseething discontent (idiom)
fèi shízeolite
mín yuàn dǐng fèiseething discontent (idiom)
gǔn fèi(of a liquid) to boil
dǐng fèia confused noise
13
Total compounds
38
As first character
46
As last character
15
As middle character

appears in 13 compound words: 38 as the first character, 46 as the last, and 15 in a middle position. Compound statistics computed from SUBTLEX-CH and HSK 3.0 vocabulary data.

Strongest Collocations

Characters that most frequently co-occur with in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

zhǔ
0.6362,976 co-occurrences
téng
0.6132,963 co-occurrences
diǎn
0.4745,025 co-occurrences
yuàn
0.463642 co-occurrences
tàng
0.45778 co-occurrences
dǐng
0.448672 co-occurrences
yáng
0.447846 co-occurrences
shuǐ
0.4094,490 co-occurrences
nào
0.407120 co-occurrences
0.406726 co-occurrences

Idioms & Chengyu (4)

fèifèiyángyángHSK 7+

tumultuous; noisy; hubbub

phrase
mín yuàn fèi téngHSK 7+

seething discontent (idiom); popular grievances boil over

phrase
rénshēngdǐngfèiHSK 7+

a cacophony of voices

phrase
yǐ tāng wò fèiHSK 7+

to manage a situation badly (idiom)

phrase

Example Sentences

AI-Generated

水滚烫,小心烫伤。

Fèishuǐ gǔntàng, xiǎoxīn tàng shāng.

Boiling water is scalding, be careful of burns.

中時新聞網Mar 2026

除湿机水能喝吗?他自爆“煮后泡茶” 实测结果曝光

chú shī jī shuǐ néng hē ma ? tā zì bào zhǔ fèi hòu pāo chá shí cè jié guǒ pù guāng

Tatoeba

腾后变为蒸汽。

Shuǐ fèiténg hòu biànwéi zhēngqì.

Water steams when it boils.

Tatoeba

藉由煮以减少黏浆状物质。

Jièyóu zhǔfèi yǐ jiǎnshǎo nián jiāng zhuàngwù zhì.

Reduce to pulp by boiling.

Tatoeba

听到这个让我感觉热血腾。

Tīngdào zhège ràng wǒ gǎnjué rèxuèfèiténg.

It made my blood boil to hear that.

Tatoeba

我们的老师说水到了一百度就会腾。

Wǒmen de lǎoshī shuō shuǐ dào le yī Bǎidù jiù huì fèiténg.

Our teacher said that water boils at 100°C.

Tatoeba

压力越低,点越低。

Yālì yuè dī, fèidiǎn yuè dī.

When the pressure is lower, the boiling point is lower.

Tatoeba

牛奶的点比水高。

Niúnǎi de fèidiǎn bǐ shuǐ gāo.

Milk boils at a higher temperature than water.

Tatoeba

水在摄氏100度腾。

Shuǐ zài Shèshì 100 dù fèiténg.

Water boils at 100 degrees.

Tatoeba

把蛋放入水中。

Bǎ dàn fàng rù fèishuǐ zhōng.

Put the egg into boiling water.

Character Family

Homophones — Characters pronounced fèi

Frequently Asked Questions

What does 沸 (fèi) mean in Chinese?
沸 (fèi) primarily means "to boil." It is classified as HSK Level 7-9, making it an expert-level character. It ranks #2563 in character frequency.
What's the difference between 沸 and 佛?
沸 (fèi) and 佛 (fó) are often confused. confusable. The key distinguishing feature: 氵 vs 亻 (same 弗 component).
How many strokes does 沸 have?
沸 is written with 8 strokes. The correct stroke order matters for recognition and handwriting speed — practice with the animated guide above to build proper technique.
What is the radical of 沸?
The radical associated with 沸 is 氵 (water). This radical appears in many characters related to water.
What are the components of 沸?
沸 is composed of: 氵 (semantic), 弗 (phonetic). Its IDS decomposition is ⿰氵弗 with a left-right layout. Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 沸?
Common words with 沸 include: 沸腾 (fèi téng, "(of a liquid) to boil"); 沸沸扬扬 (fèi fèi yáng yáng, "bubbling and gurgling"); 煮沸 (zhǔ fèi, "to boil"); 沸水 (fèi shuǐ, "boiling water"); 沸点 (fèi diǎn, "boiling point"). There are over 13 compound words containing this character.
What characters sound the same as 沸 (fèi)?
Several characters share the pronunciation fèi: 费 (to cost), 飞 (to fly), 非 (abbr. for 非洲, Africa), 啡 ((used in loanwords for its phonetic value)), and 5 more. Context and tones help distinguish between them in speech and writing.
Is 沸 the same in simplified and traditional Chinese?
Yes, 沸 is written the same way in both simplified and traditional Chinese.

Practice writing with real-time feedback

Trace stroke sequences, hear native pronunciation, and build lasting retention with spaced repetition in the HanziFeed app.

Character data sourced from Unihan (Unicode Consortium), SUBTLEX-CH frequency corpus (Cai & Brysbaert, 2010), and Make Me a Hanzi (stroke data). Collocation strength measured via NPMI (Normalized Pointwise Mutual Information). Verified by the HanziFeed linguistics team.

HSK classification follows the HSK 3.0 Standard (Center for Language Education and Cooperation, CLEC, 2022 revision). Idiom data from Wiktionary (CC BY-SA 3.0).

Data last verified: March 2026.