効率
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.
Exemples
3 sur 5この電子レンジは効率がいいです。
This microwave is very efficient.
業務効率の向上が弊社の課題です。
Improving operational efficiency is a challenge for our company.
もっと効率よく勉強したほうがいいよ。
You should study more efficiently.
Famille de mots
Astuce mémo
Think of 'Kou' (Effect) + 'Ritsu' (Rate). It's the 'Rate of Effect' you get for your hard work.
Quiz rapide
もっと___よく仕事を終わらせる方法を考えましょう。
Correct !
La bonne réponse est : 効率
Exemples
この電子レンジは効率がいいです。
everydayThis microwave is very efficient.
業務効率の向上が弊社の課題です。
formalImproving operational efficiency is a challenge for our company.
もっと効率よく勉強したほうがいいよ。
informalYou should study more efficiently.
本研究では、エネルギーの変換効率を測定した。
academicIn this study, the energy conversion efficiency was measured.
新しいシステムを導入して、作業効率を上げましょう。
businessLet's introduce a new system and increase work efficiency.
Famille de mots
Collocations courantes
Phrases Courantes
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
Souvent confondu avec
Nouritsu is usually used for human labor speed, whereas Kouritsu is broader, applying to machines, systems, and general physics.
Kouka means 'effectiveness' (the result itself), while Kouritsu is 'efficiency' (the ratio of effort to result).
Notes d'usage
It is most frequently paired with the adjectives 'ii' (good) or 'warui' (bad). In business settings, 'kouritsuka' (efficiency improvement) is a very common buzzword.
Erreurs courantes
Don't confuse efficiency (kouritsu) with efficacy/effect (kouka). Efficiency is about 'how' you do it, while effect is about 'what' happened.
Astuce mémo
Think of 'Kou' (Effect) + 'Ritsu' (Rate). It's the 'Rate of Effect' you get for your hard work.
Origine du mot
From Middle Chinese roots: 'Kou' (効) meaning effect or efficacy, and 'Ritsu' (率) meaning rate or proportion.
Modèles grammaticaux
Contexte culturel
Japanese corporate culture emphasizes 'Kouritsuka' (streamlining) to combat long working hours and resource scarcity.
Quiz rapide
もっと___よく仕事を終わらせる方法を考えましょう。
Correct !
La bonne réponse est : 効率
Vocabulaire associé
Plus de mots sur business
生産性
B1The 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.
活性化
B2To make something more active, lively, or effective. It is used for communities (revitalization), economies (stimulation), and biological processes (activation).
指針
B2A set of principles or rules used to determine a course of action; a guideline. Originally referred to a compass needle or a pointer on a gauge.
特化
B2Specializing in a particular area, field, or function. It describes narrowing one's focus to become highly efficient or expert in one specific thing.
付加
B2To add or attach something extra to an existing thing to increase its value or function.
付与
B2To grant, bestow, or assign a right, value, or task to someone. Often used in legal, administrative, or technical contexts.
妥結
B2The act of reaching an agreement after negotiations or disputes. It implies that both sides made some concessions to arrive at a settlement.
雇う
B1To give someone a job in exchange for payment. It is a core verb for discussing employment and labor markets in the IELTS test.
商品
B1An article or substance that is manufactured or refined for sale. It refers to commercial goods or products.
支店
B1A branch office or store of a larger company or bank. It is subordinate to the head office.
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