之一

• Pinyin: zhī yī
• Hanzi breakdown: 之 = classical particle indicating 'of/among'; 一 = a single horizontal stroke, the number one

Meaning

One of; one among. Used after a superlative or descriptor to indicate membership in a group.

Always used after a noun or noun phrase to mean 'one of them'. A very common construction: 最重要的问题之一 (one of the most important issues), 世界最大城市之一 (one of the world's largest cities). It cannot stand alone and must follow a modified noun.

Examples

1. 长城是中国最具代表性的历史遗迹之一。 The Great Wall is one of the most iconic historical sites in China.
2. 她是这次比赛中表现最出色的选手之一。 She was one of the most outstanding competitors in this contest.
3. 保持健康的饮食习惯是预防疾病的重要方式之一。 Maintaining a healthy diet is one of the important ways to prevent illness.

Usage Guide

Context: writing, academic, everyday

Tone: neutral

Do Say

• 他是这个领域最有影响力的专家之一。(He is one of the most influential experts in this field.)
• 北京是中国历史最悠久的城市之一。(Beijing is one of the cities with the longest history in China.)

Don't Say

• 把'之一'放在句子末尾的数量短语后 (Don't use 之一 in contexts where it isn't preceded by a superlative or group noun — the structure requires a qualified noun phrase before it, such as 最...的...之一)

Origin & History

A classical Chinese construction pairing 之 (possessive/relational particle) with 一 (one), used to single out one element from a named group. This pattern has been in use since ancient Chinese texts.

Cultural Context

Generation: All ages

Social background: Universal