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B1 verb 8 min de leitura

活用する

katsuyou suru

Pratique Exemplos Notas e dicas 活用する em 30 segundos

Explicação 活用する in your Level:

At the A1 level, you likely won't use '活用する' (katsuyō suru) yourself very often, as it is a bit more formal than the basic verbs you are learning. However, you might hear it in very simple contexts, like a teacher telling you to 'use' (utilize) your textbook effectively. At this stage, just think of it as a fancy way to say 'use' (使う - tsukau). You might see it in simple signs or instructions. For example, 'Use the app' might be written as 'アプリを活用しましょう'. The focus for A1 learners should be recognizing the '活' (life/activity) and '用' (use) kanji together. Don't worry about the complex nuances yet; just understand that it means 'to use something for a good purpose.' If you can remember that it's often used for things like 'time' (時間 - jikan) or 'skills' (スキル - sukiru), you'll be ahead of the curve. It's a 'Suru-verb,' meaning you just add 'suru' to the noun 'katsuyō' to make it an action. Even if you just stick to 'tsukau' for now, knowing 'katsuyō suru' exists will help you understand more formal Japanese announcements or textbook instructions. It's like the difference between saying 'use' and 'utilize' in English. Both are okay, but 'utilize' sounds a bit more serious and planned.

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At the A2 level, you are starting to talk about your hobbies, your work, and your daily routines in more detail. This is where '活用する' becomes more useful. You can use it to talk about how you 'utilize' your free time (暇な時間を活用する) or how you 'utilize' the internet to study Japanese (ネットを活用して日本語を勉強する). At this stage, you should try to distinguish it from the basic '使う'. Use 'katsuyō suru' when you want to sound a bit more intentional or when you are talking about using something to achieve a goal. For example, if you are talking about using a coupon to save money, 'katsuyō suru' fits well because you are being smart about your resources. You will also start encountering this word in the context of grammar. Your teacher might talk about 'verb conjugation' as '動詞の活用' (dōshi no katsuyō). Recognizing this dual meaning is a key milestone for A2 learners. You should also practice the 'te-form' (活用して) to link it with other actions, like 'Utilizing the library, I studied' (図書館を活用して、勉強しました). This shows you are moving beyond simple sentences and starting to describe more complex, purposeful actions. It's a great word to add to your 'professional' vocabulary toolkit.

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At the B1 level, you are expected to handle more abstract topics and professional scenarios. '活用する' is a core verb for this level. You should use it to describe strategic utilization of resources, such as 'utilizing data' (データを活用する), 'utilizing human resources' (人材を活用する), or 'utilizing one's strengths' (強みを活用する). At B1, you should also understand the difference between '活用する' (utilize for potential) and '利用する' (use a facility or exploit). For instance, if you are discussing social issues like 'utilizing empty houses' (空き家の活用), this verb is the most appropriate because it implies a constructive solution to a problem. You will also see it frequently in the potential form '活用できる' (can utilize) and the passive form '活用されている' (is being utilized). In workplace conversations, using '活用する' instead of '使う' will make you sound much more professional and competent. It suggests that you are not just performing an action, but you are thinking about the efficiency and the outcome. You should also be comfortable using it in longer sentences with particles like 'を' (object) and 'に' (purpose), such as 'SNSを宣伝に活用する' (Utilize SNS for promotion). This level is about moving from 'knowing' the word to 'deploying' it correctly in various social and professional contexts.

At the B2 level, you should be able to use '活用する' with a high degree of nuance and in more complex grammatical structures. You might use it in formal reports, presentations, or debates. For example, you might discuss 'the effective utilization of natural resources' (天然資源の有効活用) or 'leveraging technological innovation for economic growth' (技術革新を経済成長に活用する). At this stage, you should also be aware of related terms like '有効活用' (effective utilization) and '再活用' (re-utilization/recycling). You should be able to distinguish '活用する' from more specialized verbs like '駆使する' (to have full command of/to use freely) or '充当する' (to earmark/allocate). For instance, while you 'utilize' (活用) a budget, you might 'allocate' (充当) specific funds for a project. B2 learners should also be comfortable with the noun form '活用' and how it functions in compound words. You might encounter phrases like '活用事例' (use cases/examples of utilization) in business documents. Your ability to use this word correctly in both its general sense (utilization) and its specific linguistic sense (conjugation) should be flawless. You should also be able to explain *why* you chose '活用する' over '利用する' in a given context, highlighting the proactive and positive nuances of the former.

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At the C1 level, your use of '活用する' should be indistinguishable from a native speaker's. You will encounter this word in high-level academic texts, legal documents, and sophisticated literature. You should be able to discuss the philosophical or systemic implications of 'utilization.' For example, you might analyze how a society 'utilizes' its cultural heritage or how a legal system 'utilizes' precedents. At this level, you should also be familiar with the more obscure uses of the word, such as its role in classical Japanese grammar (文語の活用) or in highly technical fields like computer science (resource utilization). You should be able to use the word in complex sentence structures, such as '～を最大限に活用することによって' (by making the most of...) or '～の活用が不可欠である' (the utilization of ... is indispensable). Your understanding of the word's synonyms should be deep, allowing you to choose between '活用', '利用', '運用' (operation/management of funds), and '適用' (application of a rule). For a C1 learner, '活用する' is not just a verb but a conceptual tool used to describe the optimization of systems and the strategic deployment of assets. You should also be able to use it metaphorically, such as 'utilizing a failure as a stepping stone to success' (失敗を成功の糧として活用する).

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At the C2 level, you possess a masterly command of '活用する' and can use it to convey the most subtle shades of meaning. You can engage in deep discussions about the 'utilization of human capital' in the context of global economics or the 'utilization of linguistic nuances' in classical poetry. You are likely aware of the historical evolution of the word and its kanji, and how its usage has shifted over the centuries. In a professional or academic setting, you can use '活用する' to frame complex strategies, perhaps using it in conjunction with other high-level vocabulary to create sophisticated rhetorical effects. You might use the term in the context of 'resource optimization' in engineering or 'therapeutic utilization' in psychology. At this level, you also understand the word's limitations and where its usage might be considered cliché or buzzword-heavy in certain business circles, allowing you to choose even more precise alternatives when necessary. Whether you are writing a doctoral thesis on Japanese linguistics or leading a multi-national corporation, your use of '活用する' will be precise, contextually perfect, and stylistically varied. You understand that 'katsuyō' is not just about 'using' but about the 'vitalization' of the object being used, reflecting the deep life-affirming quality of the kanji '活'.

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Pratique Exemplos Notas e dicas

活用する em 30 segundos

活用する (katsuyō suru) means to utilize or make effective use of resources like skills, time, or data.
It is a Suru-verb and is more formal and strategic than the general verb 使う (tsukau).
The word also has a specific linguistic meaning: to conjugate or inflect verbs and adjectives.
Commonly used in professional, academic, and self-improvement contexts to describe optimization.

The Japanese verb 活用する (katsuyō suru) is a multifaceted term that primarily translates to "to utilize," "to make good use of," or "to leverage." At its core, it combines the kanji 活 (life, activity, vigor) and 用 (use, service). This etymological pairing suggests not just a simple act of using an object, but rather the act of breathing life into a resource or applying it in a way that generates value. In everyday Japanese, it is the go-to word when you want to describe taking a skill, a piece of information, or a physical asset and putting it to work effectively to achieve a specific objective.

Productive Utilization: This refers to using resources like time, money, or materials in a way that maximizes their potential. It is not just consumption; it is strategic application.
Intellectual Application: When you learn a new grammar point or a vocabulary word and then use it in a conversation, you are 'katsuyō-ing' your knowledge. It implies the transition from passive understanding to active mastery.
Grammatical Conjugation: In a linguistic context, this word specifically refers to the inflection or conjugation of verbs and adjectives. It describes how words change their endings to reflect tense, mood, or politeness.

最新のテクノロジーを活用することで、業務の効率が上がりました。 (By utilizing the latest technology, work efficiency has increased.)

In a professional setting, you will frequently encounter this word during meetings and strategy sessions. It carries a positive, proactive nuance. Unlike the more neutral 使う (tsukau - to use), which can describe mundane actions like using a pencil, 活用する implies a level of strategy or intentionality. If a company has unused data, they don't just 'use' it; they 'utilize' it to find new customers. This distinction is crucial for B1 learners moving into professional or academic Japanese.

空き家を活用するプロジェクトが始まりました。 (A project to make use of vacant houses has started.)

The word is also prominent in educational contexts. Teachers often encourage students to use their existing knowledge to solve new problems. This is often phrased as 「既習の知識を有効に活用しましょう」 (Let's effectively utilize our previously learned knowledge). It suggests that the knowledge is a tool in the student's belt, ready to be deployed.

学んだことを実生活で活用する。 (To apply what you have learned in real life.)

Finally, the grammatical meaning is essential for anyone studying Japanese linguistics. Every time you change 'taberu' to 'tabeta', you are performing 'katsuyō'. This dual meaning—utilization and conjugation—makes the word a staple in the vocabulary of any serious Japanese student.

Grammatically, 活用する functions as a Suru-verb. It typically takes a direct object marked by the particle を (o). The resource being utilized is the object, and the context often includes a purpose or a method, often marked by で (de) or によって (ni yotte).

Basic Structure: [Resource] を活用する — To utilize [Resource]. Example: 才能を活用する (To utilize one's talent).
Purposeful Use: [Resource] を [Purpose] に活用する — To utilize [Resource] for [Purpose]. Example: 廃校を地域センターに活用する (To utilize an abandoned school as a community center).

インターネットを活用して情報を集める。 (Utilize the internet to gather information.)

When using this verb, the speaker often implies that the utilization is beneficial or efficient. It is rarely used for negative exploitation (for that, you would use 利用する (riyō suru) in its negative sense). For example, if you say you are 'utilizing' a friend, it sounds like you are working together effectively, whereas 'using' a friend (利用する) sounds like you are taking advantage of them.

このソフトは教育現場で広く活用されています。 (This software is widely utilized in educational settings.)

It is also frequently used in the potential form, 活用できる (katsuyō dekiru), to indicate that something has the potential to be useful. This is common in reviews or product descriptions. "This smartphone can be utilized for high-quality photography" would use this form.

限られた時間を有効に活用しよう。 (Let's utilize our limited time effectively.)

In the context of Japanese grammar study, you will see it in phrases like 動詞の活用 (dōshi no katsuyō), meaning 'verb conjugation'. Here, it isn't a verb you 'do' to the words as much as it is a property of the words themselves. You might say, 「この動詞はどのように活用しますか？」 (How does this verb conjugate?).

SNSをマーケティングに活用する企業が増えている。 (An increasing number of companies are utilizing SNS for marketing.)

You will hear 活用する in environments where efficiency, strategy, and improvement are the main topics. This makes it a staple of the Japanese news, corporate culture, and academic lectures. It is less common in very casual, 'slangy' conversations between friends, where the simpler 使う (tsukau) is preferred for daily actions.

The Workplace: Managers will talk about 'human resource utilization' (人材の活用) or 'data utilization' (データの活用). It sounds professional and forward-thinking.
News and Media: Reports on government spending often use this word to explain how tax money is being 'utilized' for public works. It suggests a responsible use of public funds.
Self-Help and Productivity: Books on time management or study techniques are filled with this word. 'How to utilize your morning hours' is a classic headline.

政府はAIを活用した新しいサービスを検討している。 (The government is considering new services that utilize AI.)

In a Japanese language classroom, you will hear it every single day. The teacher will talk about 'conjugation patterns' (活用の形) or ask you to 'utilize the grammar we learned yesterday' (昨日習った文法を活用してください). In this context, it bridges the gap between the technical linguistic term and the general meaning of application.

あなたの経験を弊社で活用してください。 (Please utilize your experience at our company.)

On social media, influencers might use it when sharing 'life hacks' or tips on how to use specific apps more effectively. It adds a layer of 'expert advice' to their content. For example, "How to utilize Notion for your studies" sounds much more authoritative than just "How to use Notion."

図書館の電子書籍サービスを活用する。 (Utilize the library's e-book service.)

In summary, if the context involves improvement, efficiency, or professional application, 活用する is the appropriate choice. It signals that the user is thinking about the 'how' and 'why' of the action, not just the action itself.

While 活用する is a versatile word, learners often confuse it with other 'use' verbs like 使う (tsukau), 利用する (riyō suru), and 使用する (shiyō suru). Understanding the subtle boundaries between these is key to sounding natural.

Overusing it for Simple Actions: You shouldn't use 活用する for simple, physical actions. For example, saying 「箸を活用してご飯を食べる」 (Utilize chopsticks to eat rice) sounds very strange and overly dramatic. Use 使う for tools and everyday objects.
Confusing with 利用する (Riyō suru): 利用する is often used for using facilities (like a library) or taking advantage of a situation. While they overlap, 活用する focus more on 'effective application' for a goal, while 利用する is more about 'making use of what is available'. Also, 利用 can be negative (exploiting someone), but 活用 is almost always positive.

× 友達を活用する (Incorrect for 'using' a friend in a bad way.)
○ 友達のスキルをプロジェクトで活用する (Correct for utilizing a friend's skill productively.)

Another mistake is forgetting the grammatical meaning. If you are talking about how a word changes, you must use 活用. Using 使う or 変化する (henka suru - to change) to describe verb conjugation will sound amateurish in a linguistic context.

× トイレを活用する (Sounds like you have a strategic plan for the toilet.)
○ トイレを利用する (Correct: To use the facility.)

Finally, watch out for the particle usage. While を is standard, sometimes learners use に incorrectly when they mean 'utilize for'. Remember: [What you use] を [Purpose] に活用する. Getting these particles swapped is a common B1-level error.

× 英語に知識を活用する (Incorrect particle order.)
○ 英語の知識を仕事に活用する (Correct: Utilize English knowledge for work.)

Japanese has many words for 'using' things. Choosing the right one depends on the formality, the object being used, and the desired outcome. Here is a comparison of 活用する with its closest relatives.

使う (Tsukau): The most general term. It can replace almost any other 'use' verb in casual speech. However, it lacks the nuance of 'effective utilization' that 活用する provides.
利用する (Riyō suru): Often used for facilities, systems, or opportunities. While 活用 emphasizes 'bringing out potential,' 利用 emphasizes 'making use of availability.' It can also mean 'to exploit' in a negative sense.
使用する (Shiyō suru): A formal version of '使う'. You see this on signs (e.g., 'Currently in use' — 使用中) or in technical manuals. It is neutral and doesn't imply strategy.
駆使する (Kushi suru): To have a full command of something. This is a 'stronger' version of 活用する. If you 'kushi' a language, you are using it at a very high, expert level.

彼は五ヶ国語を駆使して交渉した。 (He negotiated by making full use of five languages.)

When you want to emphasize that something was 'helpful' or 'put to good use,' you can also use the phrase 役立てる (yakudateru). This is very common when talking about how you used advice or a donation. 「寄付金を教育に役立てる」 (To put the donation to use for education) is a common expression.

この経験を次の仕事に役立てたい。 (I want to put this experience to use in my next job.)

In summary, while 使う is the safe bet for beginners, mastering 活用する, 利用する, and 駆使する will significantly elevate your Japanese from a basic level to a professional, nuanced level. Each word paints a different picture of the relationship between the user and the tool.

How Formal Is It?

Curiosidade

In the Edo period, 'katsuyō' was already being used in a grammatical sense by scholars of 'Kokugaku' (National Learning) to describe how Japanese words changed their endings. It is one of the oldest technical terms in Japanese linguistics still in daily use.

Guia de pronúncia

UK /katsɯjoː sɯɾɯ/

US /kɑtsujoʊ sʊru/

The pitch accent is usually low-high-high-high-low (Heiban style in some dialects, but often context-dependent).

Rima com

Hanyō (General purpose) Shin'yō (Trust) Un'yō (Operation) Kan'yō (Tolerance) San'yō (Participation) Jun'yō (Application) Tan'yō (Simplicity) Gen'yō (Appearance)

Erros comuns

Pronouncing 'tsu' as 'su'. Make sure to have the 't' sound at the start.
Shortening the long 'o' in 'yō'. It must be held for two beats.
Over-emphasizing the 'u' at the end of 'suru'. It's often nearly silent in natural speech.
Confusing the pitch accent with 'katsuyo' (conjugation) in a way that sounds like a different word.
Mixing up the 'o' particle with the word itself.

Nível de dificuldade

Leitura 3/5

The kanji are common but require B1 level knowledge to recognize and read correctly as 'katsuyō'.

Escrita 4/5

Writing the kanji '活' and '用' is moderate, but using the verb correctly with particles takes practice.

Expressão oral 3/5

It is a very useful word to make your Japanese sound more professional and precise.

Audição 3/5

Common in news and workplace contexts; easy to hear once you know the 'yō' long vowel.

O que aprender depois

Pré-requisitos

使う (To use) 生活 (Life) 用事 (Errand/Business) 勉強 (Study) 方法 (Method)

Aprenda a seguir

応用する (To apply) 適用する (To apply a rule) 運用する (To operate/manage) 駆使する (To command/use freely) 貢献する (To contribute)

Avançado

止揚 (Aufheben/Sublation - utilizing a conflict for a higher purpose) 敷衍 (Amplification/Elaboration) 汎用性 (Versatility/General purpose utilization)

Gramática essencial

Suru-verbs

勉強する、活用する、利用する

Particle 'o' for direct objects

時間を活用する

Particle 'ni' for purpose

仕事に活用する

Passive form for Suru-verbs (-sareru)

広く活用されている

Potential form for Suru-verbs (-dekiru)

活用できるスキル

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Exemplos por nível

辞書を活用しましょう。

Let's utilize the dictionary.

Basic 'Let's' form: ~mashō.

この本を活用してください。

Please utilize this book.

Request form: ~te kudasai.

時間を活用します。

I will utilize my time.

Future/Habitual tense: ~masu.

アプリを活用して勉強します。

I study by utilizing an app.

Using ~te to connect actions (by means of).

メモを活用しましょう。

Let's utilize notes.

Noun + を + 活用しましょう.

図書館を活用しますか？

Do you utilize the library?

Question form: ~masu ka?

先生のアドバイスを活用した。

I utilized the teacher's advice.

Past tense: ~ta.

インターネットを活用する。

To utilize the internet.

Dictionary form.

暇な時間を活用して、本を読みます。

I utilize my free time to read books.

Using ~te to show the method of the main action.

週末を有効に活用したいです。

I want to utilize my weekend effectively.

Desire form: ~tai desu. Adverbial use: yūkō ni (effectively).

このクーポンを活用して安く買いました。

I utilized this coupon and bought it cheaply.

Past tense with the ~te form showing the means.

学んだ単語を会話で活用しましょう。

Let's utilize the words we learned in conversation.

Relative clause: 'mananda tango' (words that we learned).

古い服を掃除に活用します。

I utilize old clothes for cleaning.

Particle 'ni' indicates the purpose of utilization.

スマホを地図として活用しています。

I am utilizing my smartphone as a map.

Progressive form: ~te imasu. 'Toshite' means 'as'.

料理にハーブを活用するのが好きです。

I like utilizing herbs in my cooking.

Nominalizing the verb with 'no ga suki desu'.

空いたスペースを活用して収納を作った。

I utilized the empty space to make storage.

Relative clause: 'aita supēsu' (space that became empty).

SNSをビジネスに活用する企業が増えています。

The number of companies utilizing SNS for business is increasing.

Present progressive for trends: ~te imasu.

自分の強みを仕事で活用してください。

Please utilize your strengths in your work.

Honorific/Polite request: ~te kudasai.

このソフトは教育現場で広く活用されている。

This software is widely utilized in educational settings.

Passive form: ~rete iru (is being utilized).

太陽光エネルギーを活用した発電システム。

A power generation system that utilizes solar energy.

Noun modification: ~o katsuyō shita (that utilized...).

限られた予算をどう活用するかが重要だ。

How to utilize the limited budget is important.

Embedded question: ~ka ga jūyō da.

地域の資源を観光に活用しましょう。

Let's utilize local resources for tourism.

Particle 'ni' for the goal/destination of the action.

以前の経験を今のプロジェクトに活用しています。

I am utilizing my previous experience in the current project.

Connecting past experience to current action.

空き家を活用してカフェを作る計画がある。

There is a plan to utilize a vacant house to build a cafe.

Noun + 'ga aru' (there is a...).

ビッグデータを活用することで、顧客のニーズを把握する。

By utilizing big data, we grasp customer needs.

Using 'koto de' to indicate the means or method.

この制度は、若手社員の才能を最大限に活用するために作られた。

This system was created to utilize the talents of young employees to the fullest.

Purpose clause: 'tame ni' (in order to).

休耕地を活用して、新しい農業ビジネスを始める。

Utilize fallow land to start a new agricultural business.

Compound noun: Kyūkōchi (fallow land).

既存の設備を有効に活用し、コストを削減した。

We effectively utilized existing equipment and reduced costs.

Using the stem form 'katsuyō shi' to link clauses in formal writing.

AIを活用した自動翻訳の精度が向上している。

The accuracy of machine translation utilizing AI is improving.

Noun modification with the past form 'shita'.

彼はその知識を実務に活用する能力に長けている。

He excels in the ability to utilize that knowledge in practical work.

Phrase: '~ni takete iru' (to excel at...).

失敗を教訓として活用し、次のステップへ進もう。

Let's utilize failure as a lesson and move to the next step.

Phrase: '~o kyōkun to shite' (as a lesson).

政府は、女性の力を社会でより活用するための策を講じている。

The government is taking measures to further utilize the power of women in society.

Phrase: 'saku o kōjiru' (to take measures).

言語の多様性を社会の豊かさに活用すべきである。

We should utilize linguistic diversity for the richness of society.

Auxiliary verb: '~beki da' (should/ought to).

古典文学の知恵を現代の倫理問題に活用する試み。

An attempt to utilize the wisdom of classical literature for modern ethical issues.

Noun: 'kokoromi' (attempt/trial).

未利用の知的財産をいかに活用するかが、企業の競争力を左右する。

How to utilize unused intellectual property determines a company's competitiveness.

Phrase: 'sayū suru' (to influence/determine).

彼は、自身の政治的影響力を公共の利益のために活用した。

He utilized his political influence for the public interest.

Formal noun: 'kōkyō no rieki' (public interest).

この研究成果は、医療分野での活用が強く期待されている。

The results of this research are highly expected to be utilized in the medical field.

Passive expectation: 'kitai sarete iru'.

伝統的な技法を現代のデザインに活用することで、新たな価値を生み出す。

By utilizing traditional techniques in modern design, we create new value.

Causative-like nuance: 'umidasu' (to bring forth).

心理学の知見をマーケティング戦略に活用する手法が一般的になった。

The method of utilizing psychological findings in marketing strategy has become common.

Noun: 'chiken' (findings/knowledge).

資源の有効活用は、持続可能な社会の実現に不可欠な要素である。

Effective utilization of resources is an indispensable element for realizing a sustainable society.

Adjective: 'fukaketsu' (indispensable).

記号論の枠組みを文化現象の分析に活用することで、深層心理を解明する。

By utilizing the framework of semiotics for the analysis of cultural phenomena, we elucidate deep-seated psychology.

Academic verb: 'kaimei suru' (to elucidate).

法的なレトリックを巧みに活用し、陪審員の感情に訴えかけた。

He skillfully utilized legal rhetoric and appealed to the emotions of the jury.

Adverb: 'takumi ni' (skillfully).

宇宙資源の活用に関する国際的な法整備が急務となっている。

International legal frameworks regarding the utilization of space resources have become an urgent matter.

Noun phrase: 'hō-seibi' (legal development/framework).

人間工学の原則を都市設計に活用し、住民のウェルビーイングを向上させる。

Utilize the principles of ergonomics in urban design to improve the well-being of residents.

Technical term: 'ningen kōgaku' (ergonomics).

ナラティブ・アプローチを臨床現場で活用し、患者の自己理解を深める。

Utilize the narrative approach in clinical settings to deepen patients' self-understanding.

Professional term: 'rinshō genba' (clinical setting).

量子コンピュータを暗号解読に活用する可能性について議論がなされた。

Discussions were held regarding the possibility of utilizing quantum computers for cryptography.

Formal passive: 'giron ga nasareta' (discussions were made).

メタファーを詩的表現に活用することで、言語の限界を超えようと試みる。

By utilizing metaphors in poetic expression, one attempts to transcend the limits of language.

Volitional + 'to kokoromiru' (attempt to...).

バイオミミクリーを工業製品の開発に活用する動きが加速している。

The movement to utilize biomimicry in the development of industrial products is accelerating.

Noun: 'biomimikurī' (biomimicry).

Colocações comuns

時間を有効に活用する

知識を活用する

データを活用する

資源を活用する

才能を活用する

SNSを活用する

空き家を活用する

技術を活用する

経験を活用する

強みを活用する

Frases Comuns

有効活用

— Effective utilization. Using something without wasting its potential.

土地の有効活用を考える。

再活用

— Re-utilization or recycling. Using something again for a new purpose.

廃材を再活用して家具を作る。

活用事例

— Use cases or examples of utilization. Common in business reports.

他社の活用事例を参考にする。

活用法

— Method of utilization. A 'how-to' for using something.

スマホの便利な活用法を紹介する。

フル活用

— Full utilization. Using something to its absolute maximum capacity.

有給休暇をフル活用する。

人材活用

— Human resource utilization. Using employees' skills effectively.

企業における人材活用の重要性。

活用範囲

— Scope of utilization. The range in which something can be used.

この技術の活用範囲は広い。

積極的な活用

— Proactive utilization. Actively seeking ways to use a resource.

新システムの積極的な活用を促す。

活用術

— The art or technique of utilization. Often used in book titles.

手帳の活用術を学ぶ。

活用形

— Conjugated form. The specific shape a verb takes in grammar.

動詞の活用形を覚える。

Frequentemente confundido com

活用する vs 利用する (Riyō suru)

Riyō is for facilities or taking advantage of opportunities. Katsuyō is for strategic application of resources you have.

活用する vs 使用する (Shiyō suru)

Shiyō is a formal version of 'to use' for physical tools or equipment. It lacks the 'strategic' nuance of Katsuyō.

活用する vs 応用する (Ōyō suru)

Ōyō means to apply a theory or technique to a new, different field. Katsuyō is more general utilization.

Expressões idiomáticas

"持ち味を活用する"

— To make use of one's unique characteristics or flavor.

素材の持ち味を活用した料理。

Neutral

"コネを活用する"

— To utilize one's connections (often used slightly cynically but can be neutral).

親のコネを活用して就職する。

Informal

"地の利を活用する"

— To utilize the advantage of one's location or the terrain.

地の利を活用して商売を始める。

Neutral

"死に金ではない活用"

— Utilizing money in a way that it isn't 'dead money' (wasted), but productive.

貯金を死に金にせず、投資に活用する。

Formal

"宝の持ち腐れを活用する"

— To finally start using a valuable thing that was being wasted.

眠っていた才能を活用し、宝の持ち腐れを脱する。

Literary

"余勢を駆って活用する"

— To utilize the momentum from a previous success to achieve more.

勝利の余勢を駆って、次のプロジェクトも活用する。

Formal

"二の舞を演じないための活用"

— Utilizing a past failure to ensure one doesn't repeat the same mistake.

失敗の経験を二の舞を演じないために活用する。

Formal

"三段跳びの如き活用"

— Utilizing resources to make a huge leap forward in progress.

新技術を活用し、三段跳びの如き成長を遂げる。

Literary

"一石二鳥の活用"

— Utilizing something in a way that achieves two goals at once.

このアプリを仕事とプライベートの両方に活用する一石二鳥のアイデア。

Neutral

"背水の陣を活用する"

— Utilizing a desperate situation (last stand) as motivation to succeed.

背水の陣の状況を精神的なエネルギーとして活用する。

Formal

Fácil de confundir

活用する vs 運用 (Un'yō)

Both involve using something.

Un'yō specifically refers to operating or managing systems, funds, or laws over time. Katsuyō is a broader term for 'putting to use'.

資産を運用する (Manage assets) vs 知識を活用する (Utilize knowledge).

活用する vs 適用 (Tekiyō)

Both involve 'applying' something.

Tekiyō is specifically for applying rules, laws, or standards to a case. Katsuyō is for utilizing resources.

新法を適用する (Apply the new law) vs 技術を活用する (Utilize technology).

活用する vs 悪用 (Akuyō)

It's the opposite of 活用.

Akuyō means to misuse or exploit something for a bad purpose. Katsuyō is almost always positive.

権力を悪用する (Abuse power) vs 権力を活用する (Utilize power for good).

活用する vs 借用 (Shakuyō)

Sounds similar.

Shakuyō means to borrow something. It has nothing to do with utilization strategy.

資料を借用する (Borrow documents).

活用する vs 服用 (Fukuyō)

Uses the same 'yō' kanji.

Fukuyō is only for taking medicine.

薬を服用する (Take medicine).

Padrões de frases

[Noun] を活用して [Verb]

辞書を活用して本を読みます。

[Noun] は [Place] で活用されている

この技術は工場で活用されている。

[Noun] を [Purpose] に活用する

知識を仕事に活用する。

[Noun] を最大限に活用する

才能を最大限に活用する。

[Noun] の有効活用を図る

資源の有効活用を図る。

[Noun] を [Role] として活用する試み

廃校を美術館として活用する試み。

[Noun] を活用することによって

データをお活用することによって、売上が伸びた。

[Noun] の活用が不可欠である

イノベーションの活用が、現代社会には不可欠である。

Família de palavras

Substantivos

活用 Utilization, application, conjugation.

利活用 Utilization (often used in government/tech contexts).

有効活用 Effective utilization.

Verbos

活用させる To make someone utilize something (causative).

活用される To be utilized (passive).

Adjetivos

活用可能な Utilizable, available for use.

Relacionado

利用

使用

応用

適用

運用

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Como usar

frequency

Very common in professional, educational, and media contexts. Moderate in casual daily speech.

Erros comuns

Using '活用する' for using a tool like a hammer. → ハンマーを使う。
Katsuyō is for strategic utilization, not simple physical tool use.
Saying '友達を活用する' to mean taking advantage of a friend. → 友達を利用する。
Katsuyō is positive. Exploitation requires 'riyō'.
Using the particle 'に' for the object: '時間をに活用する'. → 時間を活用する。
The resource utilized takes the 'wo' particle.
Using '活用する' for taking medicine. → 薬を服用する。
Medicine has its own specific verb, 'fukuyō'.
Confusing '活用' (utilization) with '活動' (activity). → ボランティア活動 (Volunteer activity).
Katsudō is about doing an activity; Katsuyō is about using a resource.

Dicas

Conjugation Mastery

When learning verb endings, remember the word 'katsuyō' itself. It will help you identify parts of your textbook.

Resume Power

Use '活用する' on your resume to describe how you applied your skills in previous jobs. It sounds much more proactive than 'tsukau'.

Context Matters

If you are using a resource to create something new, 'katsuyō' is usually the best word.

Mottainai Spirit

Think of 'katsuyō' as the action part of the 'Mottainai' philosophy. It's the practical way to avoid waste.

Professional Tone

In emails to clients, use '活用' when suggesting they use a new feature or service. It sounds like you are offering a strategic benefit.

Compound Kanji

Learn '有効活用' as a single block. It's one of the most common 4-kanji compounds in professional Japanese.

Don't Overthink

While 'katsuyō' is formal, don't be afraid to use it in daily life for things like 'using up leftovers'—it just makes you sound organized!

News Keywords

When listening to Japanese news, count how many times you hear 'katsuyō'. It's a key indicator of a report on policy or technology.

Active Learning

The best way to 'katsuyō' this word is to use it in your next Japanese journal entry!

Kanji Breakdown

Remember: 活 (Life) + 用 (Use). You are giving 'life' to the thing you 'use'.

Memorize

Mnemônico

Think of 'Katsu' as 'Cutlet' (Katsu-don). To make a great Katsu-don, you must utilize the pork effectively! Or, think of 'Katsu' as 'Action' (like in martial arts) and 'Yo' as 'Use'. Action-Use = Utilize.

Associação visual

Imagine a dusty old tool in a garage. Suddenly, someone picks it up, cleans it, and uses it to build a beautiful house. That 'vitalization' of the tool is 'katsuyō'.

Word Web

Data Time Skill Space Grammar Resource Talent Technology

Desafio

Try to find three things in your room that you haven't used in a year. Write a sentence for each on how you could '活用する' (utilize) them instead of throwing them away.

Origem da palavra

Composed of two Sino-Japanese characters (Kanji): 活 (Katsu) and 用 (Yō). 'Katsu' originally means 'lively' or 'to live'. 'Yō' means 'to use' or 'purpose'. Together, they formed a term meaning to use something in a way that makes it 'alive' or 'active'.

Significado original: To put into active service; to make something function effectively.

Sino-Japanese (Kango).

Contexto cultural

There are no major sensitivities, but avoid using it for 'using people' in a way that sounds like you are manipulating them. Stick to 'utilizing their skills' to be safe.

In English, we often use 'use' for everything. 'Utilize' can sound a bit corporate or pretentious. In Japanese, 'katsuyō suru' is very common and doesn't sound pretentious; it just sounds smart and organized.

Japanese grammar books (where it means conjugation). Government white papers on 'Resource Utilization'. Business books like 'How to Utilize Your 24 Hours'.

Pratique na vida real

Contextos reais

In the Office

データを活用する
人材の有効活用
会議室を活用する
過去の事例を活用する

Studying Japanese

動詞の活用
辞書を活用する
学んだ文法を活用する
オンライン教材を活用する

Cooking/Household

残り物を活用する
スペースを有効に活用する
古いタオルを掃除に活用する
旬の食材を活用する

Technology/Apps

AIを活用する
スマホを仕事に活用する
クラウドを活用したサービス
新機能をフル活用する

Social Issues

空き家を活用する
廃校を活用した施設
地域の資源を活用する
伝統文化を活用する

Iniciadores de conversa

"「最近、新しく活用し始めたアプリはありますか？」 (Is there an app you've recently started utilizing?)"

"「日本語の勉強で、どんなツールを活用していますか？」 (What tools are you utilizing for your Japanese studies?)"

"「自分の強みをどのように仕事で活用していますか？」 (How are you utilizing your strengths in your work?)"

"「週末の時間を有効に活用するための秘訣は何ですか？」 (What is your secret for utilizing your weekend time effectively?)"

"「AIを生活の中でどのように活用すべきだと思いますか？」 (How do you think AI should be utilized in our lives?)"

Temas para diário

今日は自分の時間をどれくらい有効に活用できましたか？具体的な例を書いてみましょう。

あなたが持っているスキルの中で、もっと仕事や生活で活用できるものは何ですか？

最近学んだ新しい知識を、どのように実生活で活用しましたか？

もし広い空き地があったら、地域のためにどのように活用したいですか？

「宝の持ち腐れ」になっているものはありますか？それをどう活用すればいいでしょうか？

Perguntas frequentes

10 perguntas

Yes, but usually in the sense of utilizing their skills or talents (e.g., 人材を活用する). Using it for a person directly can sound a bit cold, as if they are a tool, so it's best reserved for professional contexts.

No, it is used for any inflecting word, including 'i-adjectives' and 'na-adjectives' (though na-adjectives are technically nouns with a copula, they are often included in conjugation studies).

'有効活用' (yūkō katsuyō) specifically emphasizes that the utilization is 'effective' and not wasteful. It's a very common set phrase in business and environmental contexts.

No, that would sound very strange. Use '利用する' (riyō suru) or '入る' (hairu) for facilities like bathrooms or elevators.

Yes, '活用する' is significantly more formal and sounds more intellectual/strategic. You would use it in a presentation, while you'd use '使う' at the dinner table.

It is '活用表' (katsuyō-hyō). You will see these in every Japanese textbook.

Yes, '再活用する' (saikatsuyō suru) is a common way to say 'to reuse' or 'to recycle' materials for a new purpose.

The particle 'を' (o) follows the resource (e.g., 知識を...). If you are specifying the purpose, use 'に' (e.g., 仕事に...).

It is a noun that becomes a verb by adding 'suru'. You can use the noun '活用' on its own (e.g., '活用のルール' - rules of utilization).

Almost never. Unlike '利用' (which can mean exploit), '活用' implies a constructive and positive application of a resource.

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