A1 noun 중립

効率

[koːɾitsɯ]

Efficiency refers to the ability to achieve a goal or perform a task with the least waste of time, effort, or resources. In a business context, it specifically describes the ratio of output to input, focusing on productivity and streamlining processes.

예시

3 / 5
1

この電子レンジは効率がいいです。

This microwave is very efficient.

2

業務効率の向上が弊社の課題です。

Improving operational efficiency is a challenge for our company.

3

もっと効率よく勉強したほうがいいよ。

You should study more efficiently.

어휘 가족

명사
効率
Verb
効率化する
부사
効率よく
형용사
効率的
관련
能率
💡

암기 팁

Think of 'Kou' (Effect) + 'Ritsu' (Rate). It's the 'Rate of Effect' you get for your hard work.

빠른 퀴즈

もっと___よく仕事を終わらせる方法を考えましょう。

정답!

정답은: 効率

예시

1

この電子レンジは効率がいいです。

everyday

This microwave is very efficient.

2

業務効率の向上が弊社の課題です。

formal

Improving operational efficiency is a challenge for our company.

3

もっと効率よく勉強したほうがいいよ。

informal

You should study more efficiently.

4

本研究では、エネルギーの変換効率を測定した。

academic

In this study, the energy conversion efficiency was measured.

5

新しいシステムを導入して、作業効率を上げましょう。

business

Let's introduce a new system and increase work efficiency.

어휘 가족

명사
効率
Verb
効率化する
부사
効率よく
형용사
効率的
관련
能率

자주 쓰는 조합

効率がいい to be efficient
効率を上げる to improve efficiency
作業効率 work efficiency
効率が悪い to be inefficient
効率化する to streamline / to make efficient

자주 쓰는 구문

効率を追求する

to pursue efficiency

効率を重視する

to prioritize efficiency

効率が落ちる

efficiency drops

자주 혼동되는 단어

効率 vs 能率 (Nouritsu)

Nouritsu is usually used for human labor speed, whereas Kouritsu is broader, applying to machines, systems, and general physics.

効率 vs 効果 (Kouka)

Kouka means 'effectiveness' (the result itself), while Kouritsu is 'efficiency' (the ratio of effort to result).

📝

사용 참고사항

It is most frequently paired with the adjectives 'ii' (good) or 'warui' (bad). In business settings, 'kouritsuka' (efficiency improvement) is a very common buzzword.

⚠️

자주 하는 실수

Don't confuse efficiency (kouritsu) with efficacy/effect (kouka). Efficiency is about 'how' you do it, while effect is about 'what' happened.

💡

암기 팁

Think of 'Kou' (Effect) + 'Ritsu' (Rate). It's the 'Rate of Effect' you get for your hard work.

📖

어원

From Middle Chinese roots: 'Kou' (効) meaning effect or efficacy, and 'Ritsu' (率) meaning rate or proportion.

문법 패턴

Noun + がいい/悪い Noun + を上げる Noun + 的 (becomes a na-adjective)
🌍

문화적 맥락

Japanese corporate culture emphasizes 'Kouritsuka' (streamlining) to combat long working hours and resource scarcity.

빠른 퀴즈

もっと___よく仕事を終わらせる方法を考えましょう。

정답!

정답은: 効率

business 관련 단어

実行

A1

Execution or implementation of a plan, idea, or command. In business, it refers to the process of putting strategies into actual practice to achieve specific goals.

品質

A1

品質 refers to the standard or level of excellence of a product or service. In a business context, it specifically describes how well a product meets its design specifications and satisfies the customer's requirements.

顧客

A1

A formal term used to refer to a person or organization that purchases goods or services from a business. It specifically emphasizes the professional relationship between the provider and the buyer, often used in management and marketing contexts.

均衡

A1

A state of equilibrium where opposing forces or influences are perfectly balanced. In a business context, it specifically refers to the stability between supply and demand or income and expenses.

概要

A1

A clear summary or outline that provides the main points and general overview of a topic, project, or document. It is used to help someone understand the 'big picture' without looking at every detail immediately.

業界

A1

Refers to a specific industry, business sector, or professional world where similar products or services are handled. It is used to group companies and individuals based on their business category.

産業

A1

Industry. It refers to the organized production or manufacture of goods or services within a specific field of economic activity.

生産

A1

The process of making, manufacturing, or growing goods and materials for use or sale. In a business context, it refers to the industrial output and the systems used to create products.

再開

A1

The act of starting an activity or process again after it has been stopped or interrupted. In a business context, it often refers to resuming meetings, operations, or negotiations.

生産性

B1

The effectiveness of productive effort, especially in industry, as measured in terms of the rate of output per unit of input. It's a common topic in IELTS for work-life balance and economic efficiency.

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