〜済み

The Japanese suffix 〜済み (zumi) is an essential grammatical component used to indicate that a specific action, process, or requirement has already been completed or settled. Originating from the verb sumu (済む), which means 'to finish' or 'to be settled,' this suffix transforms nouns into state-of-being indicators. It functions similarly to the English suffixes '-ed' or the prefix 'pre-', but it is most accurately translated as 'already completed' or 'done.' In the Japanese linguistic landscape, 〜済み is ubiquitous, appearing on everything from official government documents and bank statements to casual stickers on grocery store items. It serves as a definitive marker of status, providing immediate clarity that no further action is required for the item in question. For learners, understanding 〜済み is a gateway to understanding Japanese administrative logic and the cultural emphasis on clear status categorization.

Grammatical Function

It acts as a suffix that attaches directly to the end of nouns, often Sino-Japanese (Kango) nouns, to indicate a completed state.

Visual Usage

Frequently seen inside circular or rectangular stamps (hanko) on paperwork to signify approval or payment.

The nuance of 〜済み is one of finality and verification. Unlike the past tense marker -ta, which simply describes a past action, 〜済み describes the current status of an object resulting from that past action. For instance, while haratta means 'I paid,' shiharai-zumi means 'payment completed'—a status that might be printed on a receipt. This distinction is crucial for navigating Japanese society, where processes are often multi-layered and require explicit confirmation of each stage. Whether you are looking at a 'disinfected' sign in a hotel or a 'checked' mark on a shipping label, 〜済み is the silent communicator of reliability and order. It bridges the gap between a completed action and the resulting peace of mind for the observer.

Beyond administrative tasks, 〜済み is also found in digital interfaces. When you finish a task in a Japanese app, you might see a 'Task Completed' (Tasku-zumi) notification. In the context of social interactions, it can sometimes be used to describe people, though this is often more clinical or humorous, such as 'kekkon-zumi' (already married). The versatility of this suffix allows it to adapt to various levels of formality, though it leans toward the professional and objective. It is rarely used for personal emotional states but is the gold standard for logistical statuses. Understanding the kanji 済 (sumu/sai) is also helpful, as it contains the water radical on the left, historically relating to crossing a river or settling a debt, which reinforces the idea of reaching the 'other side' of a task or obligation.

In summary, 〜済み is more than just a word; it is a vital marker of state. It provides a concise way to convey that the 'to-do' has become 'done.' As you progress in Japanese, you will notice it appearing in complex compound words, but the underlying meaning remains consistent: the action described by the preceding noun is a thing of the past, and we are now in the resulting state of completion. This suffix is especially prominent in business Japanese (Keigo) contexts, where efficiency and clarity of status are paramount. By mastering 〜済み, you gain the ability to navigate Japanese systems with greater confidence and linguistic precision.

Common Pairs

Check-zumi (Checked), Shiharai-zumi (Paid), Shidou-zumi (Already started/guided).

Using 〜済み correctly involves understanding its role as a noun-suffix that creates a compound noun or a pseudo-adjective. The most basic construction is [Noun] + 済み. This compound can then be used in several ways: as a predicate ending in 'desu,' as a modifier for another noun using 'no,' or as a standalone label. For example, if you want to say a document is 'already checked,' you combine 'kakunin' (confirmation) with 'zumi' to get 'kakunin-zumi.' You can then say 'Kore wa kakunin-zumi desu' (This is already checked) or 'Kakunin-zumi no shorui' (The already-checked document). This flexibility is one of the reasons the suffix is so popular in both written and spoken Japanese.

Sentence Pattern 1: Predicate

[Subject] wa [Noun]済み desu. (The [Subject] is already [Noun]-ed.)

Sentence Pattern 2: Modifier

[Noun]済み no [Object]. (The [Noun]-ed [Object].)

One interesting aspect of 〜済み is its ability to handle both simple and complex nouns. While it most frequently pairs with two-kanji compounds (Suru-verbs), it can also pair with katakana loanwords. For instance, 'Check-zumi' (checked) or 'Scan-zumi' (scanned) are very common in modern office environments. This demonstrates the suffix's adaptability to modern technology and international business standards. However, it is important to note that 〜済み is not used with all nouns. It typically requires a noun that implies a process or an action that has a clear endpoint. You wouldn't say 'ringo-zumi' (apple-ed) because an apple isn't a process. You would, however, say 'tabe-zumi' (already eaten) in specific contexts, although 'shokuji-zumi' (meal finished) is more common and formal.

When using 〜済み in a question, it often sounds more professional than using the past tense. Asking 'O-shiharai wa zumi desu ka?' (Is the payment finished?) sounds like a polite inquiry into the status of a transaction, whereas 'Haraimashita ka?' (Did you pay?) can sometimes feel a bit more direct or even accusatory depending on the tone. Therefore, 〜済み is a useful tool for maintaining 'wa' (harmony) in business and service industry interactions. It shifts the focus from the person's action to the objective status of the item or task. This subtle shift is a hallmark of polite Japanese communication, making 〜済み a valuable addition to any B1-level learner's vocabulary.

Furthermore, 〜済み can be used to indicate 'pre-' conditions. For example, 'chouri-zumi' means 'pre-cooked' or 'already cooked.' This is frequently seen in supermarkets on bento boxes or prepared ingredients. In this context, it informs the consumer about the state of the product, saving them time and effort. Similarly, 'kumitate-zumi' (pre-assembled) is a key selling point for furniture. By identifying the 〜済み status, the speaker or writer provides immediate, actionable information that defines the relationship between the object and the user. Whether it is a 'settled' debt (hensai-zumi) or a 'resolved' issue (kaiketsu-zumi), this suffix is the definitive marker of a closed chapter.

Common Usage: Apps

In messaging apps like LINE, 'Read' is indicated as 'Kidoku' (already read), which is a related concept, though 'Kidoku-zumi' is the full technical term.

If you spend even a single day in Japan, you will encounter 〜済み in dozens of different contexts. The most common place is likely the workplace. In a Japanese office, documents are constantly being passed around for approval. Each person who reviews the document might stamp it with a 'Ken-zumi' (Inspected/Seen) or 'Kakunin-zumi' (Confirmed) hanko. This provides a clear audit trail of who has seen what. If you are working in Japan, you will often hear colleagues ask, 'Kono shorui, mou kakunin-zumi desu ka?' (Is this document already confirmed?). Understanding this term is essential for smooth office communication and ensuring that you don't repeat work that has already been done by someone else.

Another very common location is the supermarket or convenience store. Look at the labels on pre-packaged food. You might see 'Chouri-zumi' (Already cooked) or 'Wash-zumi' (Pre-washed) for salads. These labels are designed to tell the busy consumer exactly what state the food is in. In the electronics section, you might see 'Set-zumi' (Pre-set) or 'Juuden-zumi' (Already charged). This is a major selling point in Japan, where convenience is highly valued. Hearing a clerk say, 'Kore wa juuden-zumi desu kara, sugu ni tsukaemasu yo' (Since this is already charged, you can use it right away) is a common helpful interaction. It highlights the proactive nature of Japanese service, where the 'completed' state of a product is emphasized for the customer's benefit.

In the world of online shopping and logistics, 〜済み is the language of tracking. When you check your order status on Amazon Japan or Rakuten, you will see stages like 'Shiharai-zumi' (Payment completed), 'Hassou-zumi' (Shipped), and 'Haitatsu-zumi' (Delivered). These terms provide a sense of security and progress. In a culture that values punctuality and reliability, these 'zumi' markers are the digital equivalent of a reassuring nod. If you call customer support, the representative will use these terms to give you updates: 'O-nimotsu wa sude ni hassou-zumi de gozaimasu' (Your package has already been shipped). Here, the use of the humble 'gozaimasu' combined with 'zumi' creates a very formal and professional tone.

Finally, you will hear 〜済み in personal life, particularly regarding health and safety. During the pandemic, signs saying 'Shodoku-zumi' (Disinfected) were everywhere—on elevator buttons, restaurant tables, and rental cars. This usage provides a 'safety guarantee' to the public. Similarly, when taking a pet to the vet, you might receive a 'Vaccine-setshu-zumi' (Vaccination completed) certificate. In these cases, 〜済み acts as a formal certification of a necessary action. It is the language of compliance and public trust. Whether it's a small sticker on a piece of fruit or a large banner in a train station, 〜済み is the ubiquitous signal that the necessary steps have been taken and the situation is under control.

Public Transportation

You might see 'Seisou-zumi' (Cleaned) signs on train seats or in toilets, indicating recent maintenance.

One of the most frequent mistakes English speakers make when using 〜済み is confusing it with the simple past tense -ta. While 'tabeta' (ate) and 'tabe-zumi' (already eaten) both refer to the past, they are used in completely different grammatical structures. You cannot use 〜済み as a verb to describe an action you just did in a narrative sense. For example, if someone asks what you did yesterday, you wouldn't say 'Kaimono-zumi' (Shopping completed). You would say 'Kaimono ni ikimashita' (I went shopping). 〜済み is for labels, statuses, and conditions, not for telling a story. It describes the *result* of the action, not the *act* itself.

Another common error is trying to attach 〜済み to adjectives or verbs in their dictionary form. 〜済み exclusively attaches to the noun form of a word or the 'masu-stem' of a verb (though the latter is less common than the noun-form attachment). For instance, you cannot say 'atsui-zumi' (already hot) or 'iku-zumi' (already go). It must be a process-oriented noun. For example, 'shuppatsu-zumi' (already departed). If you are unsure, stick to pairing it with nouns that can be followed by 'suru' (to do). Words like 'shiharai' (payment), 'yoyaku' (reservation), and 'kakunin' (confirmation) are perfect candidates because they describe a clear, actionable process.

Learners also sometimes struggle with the particle 'no' when using 〜済み as an adjective. Remember that 〜済み functions like a noun. If you want to describe another noun, you *must* use 'no.' For example, 'Yoyaku-zumi seki' is grammatically incomplete; it should be 'Yoyaku-zumi **no** seki.' Without the 'no,' it sounds like a broken compound rather than a natural Japanese phrase. Conversely, if you are using it at the end of a sentence, you don't need 'no.' Just say 'Yoyaku-zumi desu.' This distinction is small but vital for sounding like a proficient speaker. Practice switching between the predicate form and the modifier form to get the hang of it.

Finally, be careful not to over-formalize casual situations. While 〜済み is common, using it with friends for every little thing can sound a bit robotic or like you are a robot processing data. If a friend asks if you finished your coffee, saying 'Inyou-zumi' (already drunk/consumed) would be bizarrely formal. Instead, just say 'Nomu-owa-tta' or 'Mou nonda.' Save 〜済み for situations where there is a clear sense of 'status' or 'procedure.' It is a tool for logistical clarity, not for every completed action in daily life. Understanding the 'register' or 'vibe' of the word is just as important as knowing its grammatical rules.

Register Check

Use 'zumi' for: Forms, office tasks, official statuses. Avoid 'zumi' for: Casual stories, emotional states, simple physical movements.

To truly master 〜済み, you need to know how it compares to other words that mean 'finished' or 'completed.' The most common alternatives are 完了 (kanryou), 終了 (shuuryou), and 終わり (owari). While they all overlap in meaning, their usage contexts are distinct. 完了 (kanryou) is very similar to 〜済み but is often used as a standalone noun or a verb (kanryou suru). It sounds more technical and is often used for large projects or system processes. You might say 'Project ga kanryou shimashita' (The project is complete). In contrast, 〜済み is almost always a suffix attached to the specific action noun (e.g., 'Settetsu-zumi').

Kanryou (完了)

Emphasis on the total completion of a process or project. Often used in technical/software contexts.

Shuuryou (終了)

Emphasis on the 'end' or 'termination' of a period of time or an event, like a meeting or a sale.

終了 (shuuryou) focuses on the end of a time period. For example, a sale at a department store might have a 'Shuuryou' date. It doesn't necessarily mean a task was 'accomplished,' just that it has 'stopped.' 〜済み, on the other hand, always implies that a required action was successfully performed. If a meeting 'shuuryou'ed, it just ended. If a document is 'kakunin-zumi,' it means someone actively checked it. This distinction is vital for accurate communication. Another word, 終わり (owari), is the most general and casual term. It's the 'The End' you see at the end of a book or movie. It is rarely used as a suffix in the same way 〜済み is.

In some cases, you might also encounter 既 (ki-), which is a prefix meaning 'already.' This is even more formal and is found in words like 既婚 (kikon) - already married, or 既習 (kishuu) - already learned. While 〜済み is a suffix that follows the noun, 既- is a prefix that precedes it. 既- is almost exclusively used in formal written Japanese and academic contexts. For a B1 learner, 〜済み is far more useful for daily life and business interactions. It strikes the perfect balance between being clear, professional, and relatively easy to use. By comparing these terms, you can see that 〜済み is the 'label maker' of the Japanese language, providing specific status updates for individual items.

Finally, let's look at the casual alternative: もう〜した (mou ... shita). This is the everyday way to say 'already did.' If you're talking to a friend, you'd say 'Mou yatta yo' (I already did it). Using 〜済み in that same conversation would make you sound like an automated voice assistant. However, in any context involving a 'system' (like a library, a store, an office, or an app), 〜済み becomes the natural choice. Understanding these layers of formality and nuance will help you choose the right word for the right situation, ensuring your Japanese is not only grammatically correct but also socially appropriate.

Quick Comparison Table

Zumi: Status Label. Kanryou: Process Completion. Shuuryou: Time/Event End. Owari: General Finish.