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內 — pronunciations, definitions, and tags
HanziPinyinEnglishTags
內nèiinsidezg, 4 strokes, radical 入, rank #26159, Very Hard
nèi(nei4) T4
  1. 1inside
Listen to the audio pronunciation 3 times to gain XP
March 24, 2026

內nèi(nei4)

The character 內 (nèi) means 'inside' and is commonly used to describe something that is within a boundary or enclosure. It can refer to physical space, such as the inside of a room, or abstract concepts, like internal thoughts or feelings. This character is often contrasted with its antonym 外 (wài), which means 'outside'.

Strokes4Radical入Frequency#26159DifficultyVery Hard
Cultural Note

In Chinese culture, the concept of 內 often symbolizes privacy and introspection, reflecting the importance placed on one's inner life and family matters. For instance, 內 traditionally relates to family and home, emphasizing harmony and internal relationships.

Memory Tip

Imagine a cozy room with a warm fireplace inside it. The character 內 has a component that resembles a room (the outer box) and a person inside, symbolizing warmth and safety. Visualize someone comfortably sitting inside as a reminder that 內 means 'inside'.

Meanings of 內

nèi(nei4)
1inside
Exercise 1 of 2

Listen & Choose the Meaning

Choose the correct answer:

About 內

內Simplified
4Strokes
入Radical
状态词stative word (stat.)Part of Speech
#—Frequency Rank

Podcast: 內

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Podcast: 內

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AI Study Notes for 內

Quick Contrast

内 (nèi) vs 里 (lǐ) — use 内 for more formal or abstract contexts, while 里 is often used in everyday speech to refer to physical locations.

Usage Notes

Be careful not to confuse 內 (nèi) with 里 (lǐ), which also means 'inside' but can have different usage contexts. 內 is more formal and often appears in written language, while 里 is more commonly used in daily conversation. Also, note that 內 is often used in phrases like 內部 (nèi bù, 'internal') or 內心 (nèi xīn, 'inner heart').

HSK Study Tips

Although 內 is not currently part of the official HSK vocabulary, it's useful for building your understanding of spatial relationships in Mandarin. Focus on how it pairs with other words to convey meaning, particularly in contexts related to places and emotions.

Common Mistakes

Learners often confuse 內 (nèi) with 外 (wài) and mistakenly use them interchangeably. For example, saying '我在外' (Wǒ zài wài, 'I am inside') is incorrect; it should be '我在內' (Wǒ zài nèi).

AI-enhanced 2026-03-24

Pronunciation of 內

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Etymology of 內

Formation TypeIdeographic 指事
六书 ClassificationIdeograph (指事字)~2% of characters
Explanation

Simplified form of 內. Depicts an entrance (入) to a hall (冂).

Memory Hint

A man 入  entering a door 冂

Learn more about Ideograph (指事字) characters

Jason Etymology Detective

Case file: 內

Simplified form of 內. Depicts an entrance (入) to a hall (冂).

  1. 1The giveawayA man 入  entering a door 冂
  2. 2On the record asideographic — someone drew an idea rather than an object.

Every clue here comes from the character's recorded structure — nothing is guessed.

Want the full history of 內? Jason searches the paleographic record, weighs the competing accounts and judges the popular story.

Charged once for this character — everyone reads it afterwards.
Exercise 1 of 1

Character Formation Type

What type of character formation is 內?

Decomposition of 內

IDS Structure⿻冂入
內Full Character
=
冂jiong1
outer
入ru4
inner
Exercise 1 of 2

Identify the Components

Which of these is a component of 內?

How to say inside in Chinese

“inside” in Chinese is內nèi

The character 內 (nèi) means 'inside' and is commonly used to describe something that is within a boundary or enclosure. It can refer to physical space, such as the inside of a room, or abstract concepts, like internal thoughts or feelings. This character is often contrasted with its antonym 外 (wài), which means 'outside'.

When to use 內

Be careful not to confuse 內 (nèi) with 里 (lǐ), which also means 'inside' but can have different usage contexts. 內 is more formal and often appears in written language, while 里 is more commonly used in daily conversation. Also, note that 內 is often used in phrases like 內部 (nèi bù, 'internal') or 內心 (nèi xīn, 'inner heart').

內 or something close to it

内 (nèi) vs 里 (lǐ) — use 内 for more formal or abstract contexts, while 里 is often used in everyday speech to refer to physical locations.

What learners get wrong

Learners often confuse 內 (nèi) with 外 (wài) and mistakenly use them interchangeably. For example, saying '我在外' (Wǒ zài wài, 'I am inside') is incorrect; it should be '我在內' (Wǒ zài nèi).

Write 內

內

Practice writing 內 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.

Write correctly 3 times to earn XP

Grammar Patterns of 內

內 carries one core meaning. Below you'll find the patterns that show how it combines with other words, plus example sentences pulled directly from native usage.

Exercise 1 of 1

Complete the Sentence

他们走近那幢建筑时,____心充满了恐惧.

They were filled with apprehension as they approached the building.

Example Sentences for 內 (1)

Listen to all sentences once to receive XP
1
他们走近那幢建筑时,內心充满了恐惧.

tā mén zǒu jìn nà chuáng jiàn zhù shí, , nèi xīn chōng mǎn le kǒng.

They were filled with apprehension as they approached the building.

Word Family of 內

Words Containing This Character20
内nèiinside內
内容nèiróngcontent內容
国内guónèidomestic國內
内心nèixīnheart內心
内部nèibùinterior內部
之内zhīnèiinside之內
体内within the body體內
内裤underpants內褲
内衣nèiyīundergarment內衣
在内zàinèiamong them在內
内地nèidìinland內地
内疚guilty conscience內疚
室内indoor室內
内在nèizàiinner內在
境内jìngnèidomestic境內
内涵nèihánimplication內涵
以内yǐnèiwithin以內
国内外at home and abroad國內外
内阁nèigé(government) cabinet內閣
内外nèiwàiabout內外
Exercise 1 of 4

Compound Meaning

What does 内 mean?

Frequently Asked Questions about 內

You can say '我在內部工作' (Wǒ zài nèi bù gōngzuò), meaning 'I work inside the organization'.

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