B2 noun Neutral

論理

/ɾonɾi/

The system of principles or reasoning used to build an argument or reach a conclusion. It refers to the quality of being justifiable by reason and consistency.

Examples

3 of 5
1

子供でもわかるような論理で説明してほしい。

I want you to explain it with logic that even a child can understand.

2

貴殿の論理には一貫性が欠けていると思われます。

It seems that your logic lacks consistency.

3

その理屈、ちょっと論理的に無理があるよ。

That reasoning is a bit of a logical stretch.

Word Family

Noun
論理
Adverb
論理的に
Adjective
論理的
💡

Memory Tip

Ron (argument) + Ri (reason) = Argument based on reason.

Quick Quiz

レポートを書くときは、( )的な構成を心がけなさい。

Correct!

The correct answer is: 論理

Examples

1

子供でもわかるような論理で説明してほしい。

everyday

I want you to explain it with logic that even a child can understand.

2

貴殿の論理には一貫性が欠けていると思われます。

formal

It seems that your logic lacks consistency.

3

その理屈、ちょっと論理的に無理があるよ。

informal

That reasoning is a bit of a logical stretch.

4

本論文では、演繹的な論理を用いて仮説を検証する。

academic

This paper verifies the hypothesis using deductive logic.

5

ビジネスにおいては、感情ではなく論理で語るべきだ。

business

In business, one should speak with logic, not emotion.

Word Family

Noun
論理
Adverb
論理的に
Adjective
論理的

Common Collocations

論理を立てる to build logic
論理的な思考 logical thinking
論理が飛躍する to have a leap in logic
論理的に説明する to explain logically
論理性 logicality

Common Phrases

論理の飛躍

a leap in logic

論理展開

logical development (of an argument)

三段論法

syllogism

Often Confused With

論理 vs 倫理

倫理 (rinri) means 'ethics', while 論理 (ronri) means 'logic'.

📝

Usage Notes

Essential for IELTS Task 2 writing to describe how an argument is structured.

⚠️

Common Mistakes

Mixing up 'ronri' (logic) with 'rinri' (ethics) is a common phonological error.

💡

Memory Tip

Ron (argument) + Ri (reason) = Argument based on reason.

📖

Word Origin

Sino-Japanese word for the 'rules of discussion'.

Grammar Patterns

論理的に〜する 論理が〜
🌍

Cultural Context

In Japanese communication, 'logic' is sometimes contrasted with 'omotenashi' or emotional harmony, but it is highly valued in academic contexts.

Quick Quiz

レポートを書くときは、( )的な構成を心がけなさい。

Correct!

The correct answer is: 論理

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