大切にする

The verb phrase 大切にする (taisetsu ni suru) is a cornerstone of Japanese emotional and social vocabulary. At its most basic level, it translates to "to cherish," "to value," or "to take good care of." However, the linguistic roots and cultural application go much deeper than a simple English equivalent. The word 大切 (taisetsu) is composed of two kanji: 大 (big/great) and 切 (to cut/urgent). Historically, this referred to something so important that it felt like a "great urgency" or a matter of life and death. When combined with the functional verb にする (to make/to treat as), it transforms the static quality of being "important" into an active, ongoing commitment to preserve, protect, and honor that importance.

Etymological Nuance

The kanji 'Setsu' (切) implies a sense of pressing closeness, suggesting that the object of your care is something you hold near to your heart or skin.

Active Intent

Unlike 'daiji' (important), 'taisetsu ni suru' requires an actor who is consciously deciding to treat something with respect.

In a broader sense, this phrase covers three main domains: physical objects, interpersonal relationships, and abstract concepts like time or health. When you taisetsu ni suru a physical object, you are not just keeping it; you are maintaining it, preventing damage, and perhaps using it with a sense of gratitude. This ties closely into the Japanese concept of Mottainai, where things are seen as having a spirit that deserves respect. If you leave a bicycle out in the rain to rust, you are failing to taisetsu ni suru that object.

When applied to people, it implies a deep level of respect and care. To taisetsu ni suru a partner or a friend means to prioritize their feelings, to listen to them, and to act in their best interest. It is often used in romantic contexts to express a commitment to the relationship. Furthermore, when applied to oneself, it becomes a powerful phrase for self-care and mental health, encouraging individuals to recognize their own worth and not overwork themselves.

Grammatical Structure

[Noun] + を + 大切にする

Polite Form

大切にします (Taisetsu ni shimasu)

Finally, the abstract application is perhaps the most common in professional and educational settings. One is often told to taisetsu ni suru their time (時間を大切にする) or to value opportunities (機会を大切にする). This implies efficiency, mindfulness, and a lack of wastefulness. In a corporate environment, a company might claim to taisetsu ni suru its customers, which translates to providing high-quality service and honoring the customer's needs above all else.

Synonym Note

While 'daiji ni suru' is very similar, 'taisetsu ni suru' often carries a slightly more emotional or formal weight depending on the context.

Using 大切にする correctly requires understanding its role as a transitive verb phrase. The basic formula is [Object] を 大切にする. Because it is a compound verb (Noun + Particle + Suru), it follows all the standard conjugations of the irregular verb suru. Whether you are speaking to a child about their toys or a CEO about their corporate philosophy, the structure remains consistent, though the level of politeness will change.

1. Physical Care and Maintenance

When referring to physical objects, the phrase implies careful handling and preservation. It is the opposite of being rough or neglectful. For example, if you buy a new car, you taisetsu ni suru it by washing it regularly and driving safely. In a household setting, parents often tell children, "Omocha o taisetsu ni shinasai" (Take care of your toys). This isn't just about not breaking them; it's about appreciating the fact that they have them.

2. Interpersonal Relationships

In relationships, taisetsu ni suru is a powerful expression of commitment. It is often used in marriage proposals or declarations of love. However, it is not limited to romance. It is equally applicable to family bonds and friendships. To taisetsu ni suru someone means to treat them with kindness, to be reliable, and to protect their well-being. If a friend says, "Kanojo o taisetsu ni shite ne" (Take good care of your girlfriend), they are advising you to be a supportive and loving partner.

3. Abstract Concepts (Time, Health, Nature)

This is perhaps the most frequent usage in daily Japanese life. You will often hear "Toki o taisetsu ni" (Value your time) or "Karada o taisetsu ni" (Take care of your health/body). In these cases, the verb implies a sense of stewardship. You are the steward of your own health and time, and you must manage them wisely. In environmental contexts, "Shizen o taisetsu ni suru" (Value/Protect nature) is a common slogan for conservation efforts.

4. Professional Contexts

In business, companies use this phrase to describe their values. "Okyakusama o taisetsu ni suru" (We value our customers) is a standard corporate motto. It can also refer to valuing data, security, or employee well-being. In a job interview, saying "Teamwork o taisetsu ni shitai desu" (I want to value teamwork) shows that you are a collaborative person who respects the group dynamic.

Conjugation examples:

• Present: 大切にする (taisetsu ni suru)
• Polite: 大切にします (taisetsu ni shimasu)
• Past: 大切にした (taisetsu ni shita)
• Negative: 大切にしない (taisetsu ni shinai)
• Te-form: 大切にして (taisetsu ni shite)
• Command: 大切にしなさい (taisetsu ni shinasai)

The phrase 大切にする is ubiquitous in Japanese society, appearing in everything from intimate conversations to national advertising campaigns. Its versatility makes it one of the most useful phrases to master for anyone living in or studying Japan. You will encounter it in various social strata, each with a slightly different nuance.

1. In the Family Home

From a young age, Japanese children are taught the importance of taisetsu ni suru. You will hear parents telling their children to take care of their school bags (randoseru), their books, and their younger siblings. It is a fundamental part of moral education (shitsuke). When a child receives a gift, the giver might say, "Taisetsu ni shite ne" (Please take good care of it/cherish it), which serves as both a wish and a gentle instruction on how to treat the item.

2. In Media and Pop Culture

Anime and J-Dramas are rife with this expression. It is a staple of emotional climaxes. A character might realize they haven't been taisetsu ni suru-ing the people around them, leading to a moment of growth. In romance, the phrase "Kimi o taisetsu ni suru" (I will cherish you) is often considered more sincere and grounded than a simple "I love you," as it implies a long-term commitment to the other person's happiness and safety.

3. In Public Service Announcements (PSAs)

The Japanese government and local municipalities frequently use taisetsu ni suru in campaigns. You will see it on posters in parks (Shizen o taisetsu ni - Cherish nature), in train stations (Manner o taisetsu ni - Value manners/etiquette), and in health clinics (Inochi o taisetsu ni - Cherish life). In these contexts, it serves as a collective call to action for social harmony and environmental preservation.

4. In Business and Service Industry

When you enter a store or a bank, the underlying philosophy is often "Okyakusama no jikan o taisetsu ni suru" (Valuing the customer's time). In corporate social responsibility (CSR) reports, companies will state how they taisetsu ni suru the environment or their local communities. If you work in a Japanese office, your boss might tell you to taisetsu ni suru the relationships with your clients (Torihikisaki to no kankei o taisetsu ni suru), emphasizing that business is built on trust and long-term care rather than just transactions.

Common Announcement

「お体をお大事に」 (O-karada o o-daiji ni) is a related set phrase used when someone is sick, meaning 'Please take care of yourself.'

In summary, whether it's a mother talking to her child, a lover making a promise, or a company stating its mission, taisetsu ni suru is the go-to expression for showing that something matters and will be treated with the utmost respect.

While 大切にする is a versatile and common phrase, learners often run into specific pitfalls regarding its nuance, grammar, and substitution with similar-sounding words. Understanding these mistakes will help you sound more natural and avoid social awkwardness.

1. Confusing 'Taisetsu' with 'Daiji'

The biggest point of confusion is between 大切 (taisetsu) and 大事 (daiji). While they are often interchangeable, taisetsu usually carries a more emotional, subjective, and personal weight. Daiji often refers to things that are objectively important, functional, or serious. For example, a "daiji na kaigi" (important meeting) is important because of its consequences, while a "taisetsu na tegami" (precious letter) is important because of the feelings attached to it. Using daiji ni suru is perfectly fine, but taisetsu ni suru sounds more heartfelt.

2. Misusing the Particle 'Ni'

Some learners forget the ni and try to say "taisetsu suru." Because taisetsu is a Na-adjective, it must be converted into an adverbial form using ni before it can modify the verb suru. Without the ni, the sentence is grammatically broken. Always remember the pattern: [Noun] を [Na-Adj] に する.

3. Overusing it for 'Maintenance'

While taisetsu ni suru can mean taking care of an object, it doesn't replace technical verbs like shūri suru (to repair) or ijisuru (to maintain). If your car is broken, you don't taisetsu ni suru it to fix it; you shūri it. Taisetsu ni suru is the attitude of care, not the technical act of fixing.

4. Confusion with 'Kawaigaru'

When talking about pets or younger people, learners sometimes confuse taisetsu ni suru with kawaigaru (to dote on/to treat with affection). While you should taisetsu ni suru your dog (provide food, vet visits, safety), kawaigaru is the act of petting them and playing with them. Taisetsu ni suru is the broader umbrella of responsible care.

5. The 'O-daiji ni' Trap

When someone is sick, the standard phrase is "O-daiji ni" (short for O-daiji ni nasatte kudasai). Learners sometimes try to say "O-taisetsu ni," which is incorrect and never used in this context. Even though taisetsu and daiji are similar, the set phrase for health recovery strictly uses daiji.

Summary of Mistakes

1. Using it for objective importance (use 'daiji' instead). 2. Forgetting the 'ni'. 3. Using it for technical repair. 4. Using it as a greeting for sick people.

To truly master 大切にする, it helps to understand its "neighbors" in the Japanese lexicon. Depending on whether you are talking about a physical object, a social value, or a person, there might be a more specific or formal word you can use.

1. 大事にする (Daiji ni suru)

This is the closest synonym. As discussed, daiji is often more objective or functional. However, in 80% of daily conversations, they are interchangeable. If you say "Kazoku o daiji ni suru," it sounds just as natural as "taisetsu ni suru." The choice often comes down to personal preference or the specific rhythm of the sentence.

2. 重んじる (Omonjiru)

This is a more formal and literary verb meaning "to value," "to prize," or "to respect." It is often used for abstract principles, traditions, or rules. You wouldn't omonjiru a physical toy, but you would omonjiru "honor" (meiyo) or "tradition" (dentō). It suggests a high level of intellectual or moral esteem.

3. 慈しむ (Itsukushimu)

This is a very poetic and deep word meaning "to love and protect" or "to treat with tender care." It is often used for the way a mother looks at her child or the way one treats a delicate flower. It carries a sense of affection and mercy that taisetsu ni suru lacks. It is common in literature and lyrics but rare in daily casual speech.

4. 守る (Mamoru)

While mamoru means "to protect" or "to keep (a promise)," it is often the physical manifestation of taisetsu ni suru. If you cherish something, you protect it. For example, "Shizen o mamoru" (Protect nature) and "Shizen o taisetsu ni suru" (Value nature) are two sides of the same coin.

5. 愛護する (Aigo suru)

This specifically means "to protect and treat with love," usually applied to animals or nature. You will see "Dōbutsu aigo" (Animal welfare/protection) on signs. It is more clinical and official than taisetsu ni suru.

6. 尊重する (Sonzou suru)

Meaning "to respect" or "to esteem," this is used for opinions, rights, and personalities. If you taisetsu ni suru someone's feelings, you are sonzou-ing their opinion. It is very common in professional and academic settings.

Comparison Table

Taisetsu ni suru: General/Emotional. Omonjiru: Formal/Principles. Itsukushimu: Poetic/Tender. Sonzou suru: Respectful/Intellectual.