A1 noun Neutro

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.

Exemplos

3 de 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.

Família de palavras

Substantivo
効率
Verb
効率化する
Advérbio
効率よく
Adjetivo
効率的
Relacionado
能率
💡

Dica de memorização

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

Quiz rápido

もっと___よく仕事を終わらせる方法を考えましょう。

Correto!

A resposta correta é: 効率

Exemplos

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.

Família de palavras

Substantivo
効率
Verb
効率化する
Advérbio
効率よく
Adjetivo
効率的
Relacionado
能率

Colocações comuns

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

Frases Comuns

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

Frequentemente confundido com

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).

📝

Notas de uso

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

⚠️

Erros comuns

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

💡

Dica de memorização

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

📖

Origem da palavra

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

Padrões gramaticais

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

Contexto cultural

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

Quiz rápido

もっと___よく仕事を終わらせる方法を考えましょう。

Correto!

A resposta correta é: 効率

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