Word Guide

定义: meaning, pinyin, and usage

Learn the meaning, pinyin, and common usage of "定义" in Chinese.

Learning Chinese Word: 定义
Reader Guide

What this article covers

Use this guide to get the core meaning of the word before you read the full explanation and examples.

1 1. Basic Information 2 2. In-depth Explanation 3 3. Example Sentences 4 Cultural Notes (if applicable) 5 Conclusion

Understanding "定义" - Chinese Word Explanation


1. Basic Information

  • Word: 定义
  • Pinyin: dìngyì
  • Literal Meaning: “fixed meaning” or “determined meaning”
  • Primary Meaning: “definition”; to define the meaning, nature, or boundaries of something

2. In-depth Explanation

  • Context and Usage:
    定义 is commonly used in academic, technical, scientific, philosophical, and formal contexts. It refers to the explanation or clear statement of what something means. In English, it can be translated as “definition” when used as a noun, and “to define” when used as a verb.

For example, in a textbook, you might see 这个词的定义是…… meaning “The definition of this word is…”. In a discussion, someone might say 我们需要先定义这个概念 meaning “We need to define this concept first.”

定义 often suggests precision and clarity. It is more formal than everyday words like 意思 (“meaning”). While 意思 can refer to a general meaning or intention, 定义 is usually a more exact explanation.

  • Character Breakdown:
    means “to decide,” “to fix,” “to set,” or “certain.” It gives the sense of making something clear or settled.
    means “meaning,” “sense,” “justice,” or “righteousness,” depending on context. In 定义, it refers to “meaning.”

Together, 定义 suggests a “fixed or determined meaning,” which is why it means “definition” or “to define.”

3. Example Sentences

  • Chinese: 请你解释一下这个词的定义。
  • Pinyin: Qǐng nǐ jiěshì yíxià zhège cí de dìngyì.
  • English: Please explain the definition of this word.

  • Chinese: 在开始讨论之前,我们应该先定义问题。

  • Pinyin: Zài kāishǐ tǎolùn zhīqián, wǒmen yīnggāi xiān dìngyì wèntí.
  • English: Before starting the discussion, we should first define the problem.

  • Chinese: 每个人对成功的定义可能都不一样。

  • Pinyin: Měi ge rén duì chénggōng de dìngyì kěnéng dōu bù yíyàng.
  • English: Everyone’s definition of success may be different.

Cultural Notes (if applicable)

In modern Chinese, 定义 is frequently used in education, research, technology, and business. For example, in programming or mathematics, 定义 is used when defining variables, functions, terms, or concepts. In social or philosophical discussions, Chinese speakers may also use it to talk about abstract ideas, such as 幸福的定义 (“the definition of happiness”) or 成功的定义 (“the definition of success”).

A useful phrase is 下定义 (xià dìngyì), which means “to give a definition.” For example: 给这个概念下定义 means “to give this concept a definition.”

Conclusion

定义 (dìngyì) means “definition” or “to define.” The character suggests something fixed or decided, and refers to meaning. Remember it as a formal word used to clearly explain what something is or what something means.

Editorial note: This page was last updated on July 24, 2026. Hanzi Explorer publishes English-language guides to Chinese vocabulary, reading, and culture. Learn more about the site. Review the editorial policy.
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