入 (rù): to enter, to go into, to join, to become a member of, (bound form) to conform to (as in 入時|入时)

入 (rù) is a Chinese character meaning “to enter.” Classified as HSK Level 4 (HSK 3.0 Standard, CLEC 2022), with radical 入 (enter). It ranks #210 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, 入 an arrow indicating "enter". Its radical form 入 (enter) appears in many related characters such as 全 (quán, all).

Spoken pronunciation
HSK 4Radical: 入 enter2 strokesFrequency #210

Definitions

  1. to enter
  2. to go into
  3. to join
  4. to become a member of
  5. (bound form) to conform to (as in 入時|入时)

Etymology & Origin

入

ideographicAn arrow indicating "enter"

Stroke Order

1
2

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

Words & Compounds

HSK Vocabulary with 入

WordPinyinMeaningHSK
进入verbjìn rùto enter4
加入verbjiā rùto become a member4
投入verb/adjective/nountóu rùto throw into5
陷入verbxiàn rùto sink into6
收入verb/nounshōu rùto take in4
入口nounrù kǒuentrance4
深入verb/adjectiveshēn rùto penetrate deeply5
融入verbróng rùto blend into6
输入verbshū rùto import5
出入nounchū rùto go out and come in6
入学verbrù xuéto enter a school or college4
入选verbrù xuǎnto be included among those selected for6
入境verbrù jìngto enter a country6
引入verbyǐn rùto draw into6
入住verbrù zhùto check in (at a hotel etc)4
入门verb/nounrù ménentrance door6
流入verbliú rùto flow into6

Common Compounds

WordPinyinMeaning
入侵verbrù qīnto invade
闯入verbchuǎng rùto intrude
侵入verbqīn rùto make (military) incursions
卷入verbjuǎn rùto be drawn into
介入verbjiè rùto intervene
坠入zhuì rùto drop into
入狱verbrù yùto go to jail
入睡verbrù shuìto fall asleep
注入verbzhù rùto pour into
潜入verbqián rùto submerge
落入verbluò rùto fall into
插入verbchā rùto insert
植入verbzhí rùto implant
入伙verbrù huǒto join a group
步入verbbù rùto step into
111
Total compounds
36
As first character
59
As last character
5
As middle character

入 appears in 111 compound words: 36 as the first character, 59 as the last, and 5 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 入 in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

加jiā
0.595357,896 co-occurrences
进jìn
0.559178,916 co-occurrences
投tóu
0.51699,694 co-occurrences
侵qīn
0.50678,774 co-occurrences
收shōu
0.489102,310 co-occurrences
境jìng
0.48072,020 co-occurrences
嵌qiàn
0.4778,908 co-occurrences
陷xiàn
0.47650,322 co-occurrences
输shū
0.46547,125 co-occurrences
插chā
0.46021,800 co-occurrences

Idioms & Chengyu (49)

鞭辟入里biānpìrùlǐHSK 7+

to be penetrating

phrase
病从口入bìngcóngkǒurùHSK 4+

illness enters from the mouth

phrase
不堪入耳bù kān rù ěrHSK 7+

(idiom) (of speech, music etc) vulgar; offensive to the ear

phrase
不堪入目bùkānrùmùHSK 7+

unsightly; disgusting to see

phrase
不入时宜bù rù shí yíHSK 4+

out of step with current thinking; outmoded; inappropriate for the occasion

phrase
出生入死chū shēng rù sǐHSK 4+

from the cradle to the grave (idiom); to go through fire and water; brave; willing to risk life and limb

phrase
打入冷宫dǎ rù lěng gōngHSK 6+

(idiom) to snub; to consign to the trash heap of history

phrase
刀枪不入dāo qiāng bù rùHSK 6+

lit. impervious to sword or spear (idiom); fig. invulnerable; untouchable

phrase
登堂入室dēngtángrùshìHSK 4+

to break into a house; to attain a high level in one's learning

phrase
高唱入云gāo chàng rù yúnHSK 4+

loud songs reaches the clouds (idiom); fig. to praise to the skies

phrase
高耸入云gāosǒngrùyúnHSK 7+

to reach to the sky; to tower into the clouds

phrase
格格不入gé gé bù rùHSK 4+

(idiom) inharmonious; incompatible

phrase

Showing 12 of 49 idioms containing 入.

Example Sentences

AI-Generated

入字虽然难写,但意思很有趣。

rù zì suī rán nán xiě , dàn yì sī hěn yǒu qù .

The character "入" may be difficult to write, but its meaning is quite interesting.

東方日報Feb 2026

出入珠海港车量 单日新高1.54万辆

chū rù zhū hǎi gǎng chē liàng dān rì xīn gāo 1 . 5 4 wàn liàng

The number of vehicles entering and leaving Zhuhai Port reached a new high of 15,400 vehicles in a single day

中国新闻网_梳理天下新闻Feb 2026

一男子试图闯入海湖庄园被击毙

yī nán zǐ shì tú chuǎng rù hǎi hú zhuāng yuán bèi jī bì

A man was killed while trying to break into Mar-a-Lago

Hk01.comFeb 2026

...仙奴作客4:1胜热刺 伊斯及基奥基尼斯各入两球

. . . xiān nú zuò kè 4 : 1 shèng rè cì yī sī jí jī ào jī ní sī gè rù liǎng qiú

... Xiannu beat Tottenham Hotspur 4-1 away Ys and Keoginis scored two goals each

Yahoo FinanceFeb 2026

...近3.3元增17% 大行估50亿恒生股息入账补资本

. . . jìn 3 . 3 yuán zēng 1 7 dà háng gū 5 0 yì héng shēng gǔ xī rù zhàng bǔ zī běn

... Nearly 3.3 yuan increased by 17% The big bank estimated that 5 billion Hang Seng dividends were recorded to supplement capital

百度新闻Feb 2026

新冬能·场外音丨陆玮鑫:冬奥会需引入“鹰眼挑战”系..

xīn dōng néng chǎng wài yīn 丨 lù 玮 鑫 : dōng ào huì xū yǐn rù yīng yǎn tiāo zhàn xì . .

New Winter Energy Off-Site Sound丨Lu Weixin: The Winter Olympics need to introduce the "Eagle Eye Challenge" system:

Tatoeba

加入我们的俱乐部吗?

Jiārù wǒmen de jùlèbù ma?

Will you join our club?

Tatoeba

博物馆的入口在哪?

Bówùguǎn de rùkǒu zài nǎ?

Where's the entrance to the museum?

Tatoeba

在哪能买到入场券?

Zài nǎ néng mǎi dào rùchǎngquàn?

Where can you buy a ticket to get in?

Tatoeba

您的工资是每个月打入您的工资卡吗?

Nín de gōngzī shì měi gè yuè dǎ rù nín de gōngzī kǎ ma?

Does your salary get put on your pay card on a monthly basis?

Character Family

入 Radical Family — Characters sharing the enter radical

Related Characters

Homophones — Characters pronounced rù

Frequently Asked Questions

What does 入 (rù) mean in Chinese?
入 (rù) primarily means "to enter." It is classified as HSK Level 4, making it an upper-intermediate character. It ranks #210 in character frequency.
What's the difference between 入 and 来?
入 (rù) and 来 (lái) are often confused. antonym. The key distinguishing feature: 入 (go) vs 来 (come).
How many strokes does 入 have?
入 is written with 2 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 入?
The radical associated with 入 is 入 (enter). This radical appears in many characters related to enter.
What are common words containing 入?
Common words with 入 include: 进入 (jìn rù, "to enter"); 加入 (jiā rù, "to become a member"); 投入 (tóu rù, "to throw into"); 陷入 (xiàn rù, "to sink into"); 入侵 (rù qīn, "to invade"). There are over 111 compound words containing this character.
What characters sound the same as 入 (rù)?
Several characters share the pronunciation rù: 如 (as, if), 辱 (disgrace), 乳 ((bound form) breast), 儒 (scholar). Context and tones help distinguish between them in speech and writing.
Is 入 the same in simplified and traditional Chinese?
Yes, 入 is written the same way in both simplified and traditional Chinese.

Practice writing 入 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.