衍 (yǎn): to spread out, to develop, to overflow

衍 (yǎn) is a Chinese character meaning “to spread out.” Classified as HSK Level 7-9 (HSK 3.0 Standard, CLEC 2022), it is composed of 行 (structural) and 氵 (structural). It ranks #2358 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, 衍 water 氵 going in all directions 行. Its radical form 行 (walk) appears in many related characters such as 行 (xíng, to walk), 街 (jiē, street), 衡 (héng, to weigh).

Spoken pronunciation

Definitions

  1. to spread out
  2. to develop
  3. to overflow

Etymology & Origin

衍

ideographicWater 氵 going in all directions 行

Decomposition: ⿻行氵 (layout: overlay)

Stroke Order

1
2
3
4
5
6
7
8
9

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

Words & Compounds

Common Compounds

WordPinyinMeaning
敷衍verbfū yǎnto elaborate (on a theme)
繁衍verbfán yǎnto multiply
衍生verbyǎn shēngto give rise to
敷衍了事phrasefū yǎn liǎo shì(idiom) to do things half-heartedly
衍生物nounyǎn shēng wùderivative
衍变verbyǎn biànto develop
衍射verbyǎn shè(physics) to diffract
罗摩衍那proper-nounluó mó yǎn nàthe Ramayana (Indian epic)
敷衍塞责phrasefū yǎn sè zé(idiom) to skimp on the job
衍生工具nounyǎn shēng gōng jùderivative (finance)
衍生产品nounyǎn shēng chǎn pǐnderivative product
金融衍生产品jīn róng yǎn shēng chǎn pǐnfinancial derivative
信贷衍生产品xìn dài yǎn shēng chǎn pǐncredit derivative (in finance)
衍射格子yǎn shè gé zidiffraction grating (physics)
衍声复词yǎn shēng fù cícompound word, such as 玫瑰 or 咖啡, whose meaning is unrelated to the individual characters (Note: ...
28
Total compounds
50
As first character
32
As last character
18
As middle character

衍 appears in 28 compound words: 50 as the first character, 32 as the last, and 18 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 衍 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

敷fū
0.5941,029 co-occurrences
生shēng
0.56248,660 co-occurrences
繁fán
0.5193,880 co-occurrences
萧xiāo
0.4761,068 co-occurrences
型xíng
0.4528,768 co-occurrences
品pǐn
0.3975,070 co-occurrences
物wù
0.3967,442 co-occurrences
射shè
0.3932,434 co-occurrences
伸shēn
0.3841,048 co-occurrences
兢jīng
0.32718 co-occurrences

Idioms & Chengyu (6)

敷衍了事fūyǎnliǎoshìHSK 7+

to work halfheartedly; to gloss things over; to go through the motions

phrase
敷衍塞责fūyǎnsèzéHSK 7+

to work halfheartedly; to go through the motions; to perform one's duty in a perfunctory manner

phrase
罗摩衍那LuómóyǎnnàHSK 7+

Ramayana

衍射格子yǎn shè gé ziHSK 7+

diffraction grating (physics)

phrase
衍生产品yǎnshēng chǎnpǐnHSK 7+

derivative

noun

Showing 5 of 6 idioms containing 衍.

Example Sentences

AI-Generated

老师教我们衍字的发音和笔顺。

lǎo shī jiào wǒ men yǎn zì de fā yīn hé bǐ shùn .

The teacher taught us the pronunciation and stroke order of the character "衍."

TvbsApr 2026

传美国将调整钢铝关税!衍生成品拟课25% 最快本周公告

chuán měi guó jiāng diào zhěng gāng lǚ guān shuì ! yǎn shēng chéng pǐn nǐ kè 2 5 zuì kuài běn zhōu gōng gào

Reports suggest the U.S. will adjust tariffs on steel and aluminum! A 25% tariff is proposed for derived products, with an announcement expected as early as this week.

東方日報Mar 2026

正论:敷衍卸责要不得 连串疏忽铸大祸

zhèng lùn : fū yǎn xiè zé yāo bù dé lián chuàn shū hū zhù dà huò

Editorial: Half-hearted Efforts and Shifting Blame Are Unacceptable; A Series of Oversights Leads to a Major Disaster

Hk01.comMar 2026

台湾拾荒老兵赵衍庆91岁病逝 持台积电股票 遗产将纳入荣...

tái wān shè huāng lǎo bīng zhào yǎn qìng 9 1 suì bìng shì chí tái jī diàn gǔ piào yí chǎn jiāng nà rù róng . . .

Zhao Yanqing, a 91-year-old Taiwanese veteran who scavenged for a living, has passed away. He held shares in TSMC, and his estate will be included in the...

UdnnewsindexFeb 2026

非洲猪瘟防线破功原因曝光!厨余蒸煮超敷衍...疫情爆发继续送屠宰场

fēi zhōu zhū wēn fáng xiàn pò gōng yuán yīn pù guāng ! chú yú zhēng zhǔ chāo fū yǎn . . . yì qíng bào fā jì xù sòng tú zǎi chǎng

The reason for the failure of the African swine fever defense line is exposed! Cooking of kitchen waste is super perfunctory... The outbreak continues to be sent to the slaughterhouse

BastillepostFeb 2026

...:部份演唱会内地观众占六成 带动周边行业衍生商机

. . . : bù fèn yǎn chàng huì nèi dì guàn zhòng zhàn liù chéng dài dòng zhōu biān háng yè yǎn shēng shāng jī

...: Some concerts account for 60% of mainland audiences, driving derivative business opportunities in surrounding industries

Tatoeba

这个字是希腊语衍生出来的。

Zhège zì shì Xīlàyǔ yǎnshēng chūlái de.

This word is derived from Greek.

Character Family

行 Radical Family — Characters sharing the walk radical

Homophones — Characters pronounced yǎn

Frequently Asked Questions

What does 衍 (yǎn) mean in Chinese?
衍 (yǎn) primarily means "to spread out." It is classified as HSK Level 7-9, making it an expert-level character. It ranks #2358 in character frequency.
How many strokes does 衍 have?
衍 is written with 9 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 衍?
The radical associated with 衍 is 行 (walk). This radical appears in many characters related to walk.
What are the components of 衍?
衍 is composed of: 行 (structural), 氵 (structural). Its IDS decomposition is ⿻行氵 with a overlay layout. Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 衍?
Common words with 衍 include: 敷衍 (fū yǎn, "to elaborate (on a theme)"); 繁衍 (fán yǎn, "to multiply"); 衍生 (yǎn shēng, "to give rise to"); 敷衍了事 (fū yǎn liǎo shì, "(idiom) to do things half-heartedly"); 衍生物 (yǎn shēng wù, "derivative"). There are over 28 compound words containing this character.
What characters sound the same as 衍 (yǎn)?
Several characters share the pronunciation yǎn: 眼 (eye), 言 (words), 严 (tight (closely sealed)), 验 (to test, to verify), and 6 more. Context and tones help distinguish between them in speech and writing.
Is 衍 the same in simplified and traditional Chinese?
Yes, 衍 is written the same way in both simplified and traditional Chinese.

Practice writing 衍 with real-time feedback

Trace stroke sequences, hear spoken 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.