单元

• Pinyin: dān yuán
• Hanzi breakdown: 单 (single) + 元 (unit/origin)

Meaning

Unit; section. Used for units of a building (stairwell entry), textbook chapters, or other organised segments.

In housing, 单元 refers to a stairwell entrance in an apartment building. In education, it means a unit or chapter in a textbook. Also used in science and technology for a unit of measurement or module.

Examples

1. 我家住在第二单元五楼。 My home is on the fifth floor of building entrance two.
2. 这本书的第一单元讲的是中国历史。 The first unit of this book is about Chinese history.
3. 请打开课本，翻到第三单元。 Please open the textbook and turn to unit three.

Usage Guide

Context: housing, education, everyday

Tone: practical

Do Say

• 我住在这栋楼的第一单元。(I live in the first unit of this building.)
• 这个单元的内容比较难。(The content of this unit is quite difficult.)

Don't Say

• 一个单元的苹果 (Don't use 单元 as a measure word for items — it refers to sections of buildings or textbooks, not countable objects)

Origin & History

Compound of 单 (single, individual) and 元 (unit, origin), meaning an individual segment within a larger whole.

Cultural Context

Generation: All ages

Social background: Universal