定義

ていぎ

definition

JLPT N1

Character Breakdown

Understanding 定義 (Definition)

The word 定義 (ていぎ) is a formal noun used primarily in academic, legal, and technical contexts to mean "definition." It refers to the clear explanation or specification of the meaning and scope of a term or concept.

Usage and Nuance

When you use 定義, you imply a precise and agreed-upon explanation, often necessary for clear communication in professional or scholarly settings. It is common in discussions about concepts, laws, terms, or project goals.

Common Collocations

  • 定義を調べる (ていぎをしらべる): to look up a definition
  • 定義を共有する (ていぎをきょうゆうする): to share a definition
  • 定義を明確にする (ていぎをめいかくにする): to clarify a definition

These collocations highlight the importance of understanding and agreeing on meanings in communication.

Register and Formality

定義 is a formal term and rarely used in casual conversation. It appears mostly in written language, lectures, presentations, and formal discussions.

Common Learner Mistake

Learners sometimes confuse 定義 with 説明 (せつめい, explanation). While 定義 is a precise statement of meaning, 説明 is a broader term for explaining or describing something. Use 定義 when focusing on the exact meaning or boundaries of a term.

Example Sentences

このことばのていぎをじしょでしらべてみましょう。

Let's look up the definition of this word in the dictionary.

ほうりつのていぎはじだいとともにかわることがあります。

The definition of laws can change over time.

ぷろじぇくとのせいこうのていぎをちーむできょうゆうしましょう。

Let's share the definition of success for the project within the team.