洗濯する

The Japanese verb 洗濯する (sentaku suru) is a fundamental compound verb that every learner at the A2 level must master. It literally translates to 'to do laundry' or 'to wash clothes.' In the Japanese language, many actions are formed by taking a noun of Chinese origin (kango) and adding the verb suru (to do). In this case, 洗濯 (sentaku) is the noun meaning 'laundry' or 'washing,' and adding する turns it into the active process of cleaning garments. This word is ubiquitous in daily life, appearing in conversations ranging from household chores to weather forecasts. Unlike the general verb 洗う (arau), which can refer to washing anything from hands to cars, sentaku suru is specifically reserved for fabrics and apparel.

Grammar Category

Suru-verb (Class 3 / Irregular Verb)

Contextual Usage

Used primarily in domestic settings, describing the act of using a washing machine or hand-washing clothes.

In Japan, the act of sentaku suru is deeply tied to the weather. Because many Japanese homes do not have large American-style dryers, people rely heavily on hanging clothes outside on balconies. Consequently, you will often hear the term 洗濯日和 (sentaku biyori), which means 'perfect weather for doing laundry.' When someone says they are going to sentaku suru, they are not just talking about the machine; they are often implying the entire process: washing, hanging, and eventually folding. It is a word that carries the weight of domestic responsibility and the rhythm of Japanese daily life. In urban areas, you might also sentaku suru at a koin randorii (coin laundry), especially during the humid rainy season known as tsuyu.

Furthermore, the word can be used both transitively and intransitively in common parlance. While technically 洗濯物をする (sentakumono o suru) is the 'object + verb' form, most native speakers simply say sentaku suru. It is also important to note the distinction between home laundry and dry cleaning. If you are taking a suit to a professional, you would use クリーニングに出す (kuriiningu ni dasu) rather than sentaku suru, which implies a water-based wash at home. Understanding these nuances helps you sound more natural and prevents confusion when discussing household chores with Japanese friends or roommates.

Kanji Breakdown

洗 (Wash) + 濯 (Rinse/Laundry). Both characters contain the water radical (氵), emphasizing the liquid-based nature of the task.

Finally, consider the social aspect. In Japanese society, hanging laundry is a visible sign of a well-managed household. Therefore, sentaku suru is often the first task performed in the morning to ensure clothes dry by the afternoon. When you use this word, you are tapping into a core part of the Japanese daily routine. Whether you are living in a dormitory, a shared house, or an apartment, knowing how to use sentaku suru correctly will allow you to navigate the logistics of daily life with ease and confidence.

Using 洗濯する (sentaku suru) effectively requires an understanding of Japanese verb conjugation and particle usage. As a suru-verb, it follows the standard pattern for Class 3 verbs. To say 'I do laundry,' you use the polite form 洗濯します (sentaku shimasu). For the past tense 'I did laundry,' you use 洗濯しました (sentaku shimashita). If you are currently in the middle of the process, the progressive form is 洗濯しています (sentaku shite imasu). This is particularly useful when someone asks what you are doing over the phone or through a messaging app like LINE.

Particle Usage

Often used with 'o' (を) when specifying the object: 洗濯物を洗濯する (To wash the laundry items), though the 'o' is frequently omitted in casual speech.

When constructing sentences, you'll often want to include the frequency or the time. For instance, 'I do laundry twice a week' becomes 週に二回、洗濯します (Shuu ni nikai, sentaku shimasu). If you want to express a need or obligation, use the nakereba narimasen form: 洗濯しなければなりません (sentaku shinakereba narimasen), meaning 'I must do laundry.' This is a very common sentiment among students and busy professionals. You can also combine it with other verbs using the te-form to describe a sequence of events: 洗濯して、掃除して、それから買い物に行きます (Sentaku shite, souji shite, sorekara kaimono ni ikimasu) — 'I'll do laundry, clean, and then go shopping.'

In more advanced contexts, you might use the potential form 洗濯できる (sentaku dekiru) to discuss whether a certain fabric is washable. For example, 'Can this sweater be washed?' would be このセーターは洗濯できますか？ (Kono seetaa wa sentaku dekimasu ka?). This is vital when shopping or reading care labels. You might also encounter the passive form sentaku sareru, though it is less common in daily speech and usually appears in more formal or literary contexts. Another important pattern is the use of sentaku suru with mae ni (before) or ato de (after). For example, 洗濯する前にポケットを確認します (Sentaku suru mae ni poketto o kakunin shimasu) — 'I check the pockets before doing the laundry.'

Common Adverbs

毎日 (Mainichi - every day), まとめて (Matomete - all together), 丁寧に (Teinei ni - carefully).

Finally, remember that in casual Japanese, the suru can be dropped when the context is clear, or replaced with shite in a request: これ、洗濯しといて (Kore, sentaku shitoite) which is a contraction of shite oite, meaning 'Do the laundry (for this) in advance.' This type of contraction is very common in family settings. By practicing these different forms, you will be able to talk about your chores naturally and understand instructions from others regarding household maintenance.

You will encounter 洗濯する (sentaku suru) in a variety of real-world scenarios in Japan. The most common place is within the home. Parents often tell their children to put their dirty clothes in the basket so they can sentaku suru. If you are staying with a host family, you will likely hear the question, 「洗濯するもの、ある？」 (Sentaku suru mono, aru?), which means 'Do you have anything to be washed?' This is a kind gesture indicating they are about to start a load of laundry. Understanding this phrase is key to being a polite guest.

Media & Advertising

Detergent commercials (CMs) are constant on Japanese TV, featuring catchy songs about how easy it is to 'sentaku suru' with their product.

The weather forecast is another place where this word is used daily. Japanese meteorologists often provide a 'Laundry Index' (洗濯指数 - sentaku shisuu), which rates how well clothes will dry outdoors. They might say, 'Today's laundry index is 100,' meaning you should definitely sentaku suru. Conversely, if the index is low, they might advise against it. This reflects the high priority laundry takes in the daily schedule of Japanese citizens. If you live in an apartment building, you might also see signs in the common areas regarding the hours during which you are allowed to sentaku suru, as the noise from washing machines can disturb neighbors late at night.

In a work context, if you wear a uniform, your supervisor might remind you to sentaku suru regularly to maintain a professional appearance. In schools, students are responsible for taking home their 'uwabaki' (indoor shoes) or gym clothes to sentaku suru over the weekend. You'll also hear the term at hotels or ryokans that offer laundry services. They might have a bag labeled 洗濯用 (sentaku-you) for items you want the staff to wash. Being aware of this word helps you identify these services quickly. Whether it's a casual chat with a neighbor about the humidity or a formal instruction at a hotel, sentaku suru is an essential part of the auditory landscape in Japan.

Public Spaces

Coin laundries often have instructions posted on the wall using 'sentaku suru' to guide users through the cycles.

Finally, in anime or dramas, sentaku suru is a common 'slice-of-life' action. Characters are often shown hanging laundry while having important conversations. This visual and auditory cue reinforces the domesticity of the scene. By paying attention to these contexts, you'll see that the word is not just a vocabulary item to be memorized, but a vital part of the cultural fabric. It connects you to the everyday habits and concerns of Japanese people, making your language skills more practical and grounded in reality.

One of the most frequent mistakes English speakers make is confusing 洗濯する (sentaku suru) with the general verb 洗う (arau). While both mean 'to wash,' they are not interchangeable. Arau is used for things like 手を洗う (te o arau - wash hands), 皿を洗う (sara o arau - wash dishes), or 車を洗う (kuruma o arau - wash a car). If you say fuku o arau (wash clothes), it is technically understood, but sentaku suru is the much more natural and common way to express the act of doing laundry. Using arau for laundry can make you sound like a beginner or as if you are washing a single item by hand in a sink rather than doing a load of laundry.

The 'Suru' Omission

Forgetting to add 'suru' and just saying 'sentaku' makes the sentence incomplete. 'Sentaku desu' is also incorrect when you mean 'I am doing laundry.'

Another common error is the confusion between 洗濯 (sentaku - laundry) and 選択 (sentaku - choice/selection). They are homophones, meaning they sound exactly the same. While context usually makes the meaning clear, in writing, using the wrong kanji is a major mistake. Sentaku suru (洗濯する) is laundry, while sentaku suru (選択する) is to choose. If you are texting a friend about your chores, ensure you pick the kanji with the water radical (氵) to avoid telling them you are 'choosing' your clothes when you mean you are 'washing' them.

Learners also struggle with the transitive nature of the verb. In English, we say 'I am washing the laundry.' In Japanese, you can say 洗濯物を洗濯する (sentakumono o sentaku suru), but it sounds redundant. It's better to just say sentaku suru or 服を洗濯する (fuku o sentaku suru). Also, avoid using sentaku suru for dry-clean-only items. If you tell someone you sentaku shita your expensive wool suit, they might be horrified because it implies you put it in the washing machine with water, which would ruin it. For professional cleaning, always use kuriiningu ni dasu.

Register Errors

Using 'sentaku suru' in a very formal business email to a client might be too casual. In such cases, 'sentaku itashimasu' or other keigo forms are needed.

Finally, pay attention to the particles. Beginners sometimes use de instead of o or nothing at all. While you can say 洗濯機で洗濯する (sentakuki de sentaku suru - wash with a washing machine), the 'de' indicates the tool. Don't use 'de' for the clothes themselves. By keeping these distinctions in mind—especially the difference between arau and sentaku suru, and the two different sentaku kanji—you will avoid the most common pitfalls and speak much more clearly.

While 洗濯する (sentaku suru) is the standard term for doing laundry, there are several related words and alternatives that can help you express specific nuances. Understanding these will enrich your vocabulary and make your descriptions of household chores more precise. The most obvious alternative is 洗う (arau), which we've discussed. Use arau when you are washing a specific item by hand or when the focus is purely on the act of cleaning something with water and soap, regardless of whether it's clothing.

Comparison: Sentaku vs. Arau

洗濯する: Refers to the whole process of laundry (usually involving a machine).
洗う: General 'to wash' (hands, dishes, or a specific piece of cloth).

Another crucial alternative is クリーニングに出す (kuriiningu ni dasu). In Japan, 'cleaning' specifically refers to professional dry cleaning services. If you have a suit, a heavy coat, or a formal kimono, you don't sentaku suru; you take it to the kuriiningu-ya. This distinction is vital for practical life in Japan. Additionally, there is the term 水洗いする (mizuarai suru), which means 'to wash with water.' This is often used in the context of care instructions to indicate that an item can be washed in water rather than needing chemical dry cleaning.

If you want to talk about specific parts of the laundry process, you might use すすぐ (susugu) or ゆすぐ (yusugu), both meaning 'to rinse.' When the machine is in its final stage, it is susugi. To talk about drying, you use 干す (hosu - to hang out to dry) or 乾かす (kawakasu - to dry, e.g., using a dryer). A phrase you will often hear in commercials is 丸洗い (maruarai), which means 'washing the whole thing,' often used for items like futons or sneakers that people used to think couldn't be fully washed in a machine. Knowing these related terms allows you to describe your domestic life with much more detail.

Related Vocabulary

脱水 (Dassui - spinning/dehydration), 乾燥 (Kansou - drying), 柔軟剤 (Juunanzai - fabric softener).

Finally, consider the verb 畳む (tatamu), which means 'to fold.' The laundry cycle isn't truly complete until you sentaku-mono o tatamu. By learning these alternatives and supplementary words, you move beyond basic communication and start to understand the full workflow of Japanese household management. Whether you are explaining why you can't go out ('I have to fold the laundry') or asking how to care for a new garment, these words will serve you well.