内 nèi
“inside; inner; internal”
locality wordHSK 4 · 2021 list level 3Traditional 內
新HSK等级2025 HSK 3.0 syllabus level
内 appears in the November 2025 exam syllabus in the following numbered entry. Levels refer to the listed reading and use, not every meaning.
- Entry 1528: 内 nèi — Level 4; official annotation 4 (名). PDF page 118
Separate from the HSK 2.0 and 2021 list labels above. Compare the three lists.
用法How to use 内
内 means “inside” or “within” and is usually attached to a noun or time word, as in 室内, 国内, and 三天内. It is more compact and slightly more written than 里/里面, and it often appears in signs, notices, and fixed expressions. The common pattern is noun + 内 or time period + 内.
例句Example sentences
- 室内不能抽烟。shì nèi bù néng chōu yān.You can't smoke indoors.
- 国内有很多漂亮的地方。guó nèi yǒu hěn duō piào liang de dì fang.There are many beautiful places within the country.
- 请在三天内把书还给我。qǐng zài sān tiān nèi bǎ shū hái gěi wǒ.Please return the book to me within three days.
常见错误Common mistakes
-
✗我在内等你。
✓我在里面等你。
内 usually cannot stand alone after 在 as a place word; use 里面/里, or attach 内 to a noun such as 屋内.