実行

The Japanese word 実行 (じっこう - jikkou) is a powerful and essential noun that translates to 'execution,' 'implementation,' or 'carrying out' a plan or idea. It is composed of two kanji characters: 実 (jitsu), meaning 'reality,' 'truth,' or 'fruit,' and 行 (kou), meaning 'to go' or 'to conduct.' Together, they literally represent the act of 'going toward reality' or 'making something real through action.' This word is ubiquitous in Japanese society, appearing in business meetings, software development, legal discussions, and daily conversations about personal goals. Unlike the simpler verb 'yaru' (to do), jikkou carries a weight of intentionality and systematic progress. It implies that there was a prior thought, a plan, or a command that is now being put into motion. In a professional setting, jikkou is the bridge between strategy and results. A company might have a brilliant strategy, but without jikkou-ryoku (the power of execution), that strategy remains a mere fantasy. When you hear this word, think of the moment a project moves from the whiteboard to the real world.

Business Context

In Japanese corporate culture, 'jikkou' is often contrasted with 'keikaku' (planning). Managers frequently emphasize that 'planning is 20%, but execution is 80%.' It refers to the operational phase of a project.

Furthermore, jikkou is the standard term used in computing. When you 'run' a program or 'execute' a command, the button or the process is labeled as jikkou. This technical usage mirrors the English 'execute,' where a set of instructions is processed by the CPU. In the realm of law and crime, jikkou is used in the term jikkou-han (perpetrator), referring to the person who actually carries out the criminal act, as opposed to the mastermind who only planned it. This highlights the word's focus on the physical or actual realization of an intent. Whether you are talking about a New Year's resolution, a marketing campaign, or a line of code, jikkou is the word that signifies the transition from 'thinking' to 'doing.' It is a word of action, accountability, and realization.

Personal Growth

People often talk about 'jikkou-ryoku' (ability to take action) as a desirable trait. Someone who has high 'jikkou-ryoku' is a 'doer' who doesn't just talk but gets things done.

The nuances of jikkou also extend to social and political spheres. When a government implements a new policy, the media will use jikkou to describe the phase where the policy actually begins to affect the public. It is a formal word, but it is not so stiff that it cannot be used in daily life. For instance, if you and a friend decide to go on a diet, and you actually start eating healthy the next day, you could say you are 'jikkou chuu' (in the middle of executing/doing it). This versatility makes it one of the most functional words in the Japanese vocabulary for anyone moving beyond basic greetings into functional communication.

Technical Usage

In software, the 'Execute' button is almost always '実行'. If a program fails to run, the error might say '実行できません' (Cannot execute).

Using 実行 (jikkou) correctly requires understanding its role as a 'Suru-verb' (a noun that becomes a verb by adding 'suru'). While it can stand alone as a noun, its most frequent appearance is in the form jikkou suru. When you use it, you are usually identifying an object—the plan, the task, or the command—that is being acted upon. For example, 'Keikaku o jikkou suru' (To execute a plan). The particle 'o' (を) is essential here to mark the plan as the object of the execution. However, jikkou is also frequently used with the particle 'ni' (に) in the phrase jikkou ni utsu (実行に移す), which literally means 'to move into execution.' This phrase is particularly common when discussing the transition from the planning phase to the active phase. It suggests a decisive shift in state.

Common Pattern: [Noun] + を実行する

This is the most standard way to say 'execute [Noun].' Common nouns used here include keikaku (plan), saku (measure/strategy), and meirei (command).

In more formal or technical writing, you might see jikkou combined with other nouns to form compound words. For instance, jikkou-ryoku (実行力) refers to the ability to get things done, or 'execution power.' This is a highly valued trait in Japanese job descriptions. Another common compound is jikkou-keikaku (実行計画), meaning an 'action plan' or 'implementation plan.' This is more specific than a general 'keikaku' because it focuses on the 'how' and 'when' of the actual work. When you are writing a report or a business proposal, using these compounds can make your Japanese sound more professional and precise. In contrast, using 'yaru' in these contexts would sound too casual and vague.

Grammar Note: Potential Form

To say 'can execute,' use 'jikkou dekiru.' To say 'cannot execute,' use 'jikkou dekinai.' This is common in software error messages.

Another important aspect of using jikkou is its level of formality. While it is a 'kango' (word of Chinese origin), which usually implies formality, it is so common that it is used in neutral daily speech as well. However, in very polite (keigo) situations, you might use even more formal synonyms like suikou (遂行) for 'accomplishing' a duty, or jisshi (実施) for 'implementing' a public event or policy. Understanding these subtle shifts in vocabulary helps you navigate different social strata in Japan. For a beginner or intermediate learner, jikkou is the 'safe' middle-ground word that works in 90% of situations where you want to say 'execute' or 'put into practice.'

The 'Utsu' Connection

The verb 'utsusu' (移す) means to move or transfer. Using 'jikkou ni utsusu' implies moving the plan from the paper/mind to the real world.

You will encounter 実行 (jikkou) in a wide variety of real-world scenarios in Japan. One of the most common places is the Japanese workplace. During morning meetings (chourei) or project updates, you will hear managers ask, 'Kono keikaku wa itsu jikkou shimasu ka?' (When will we execute this plan?). It is a word that demands a timeline and accountability. In the tech-heavy cities like Tokyo, you'll see jikkou on every computer screen. If you use a Japanese interface for Windows or macOS, the 'Run' command or the button to apply changes is often labeled jikkou. This makes it a word that even non-business people see dozens of times a day. It is the digital heartbeat of Japanese technology.

In the News

News anchors use 'jikkou' when discussing government actions. 'Seifu wa atarashii zei-sei o jikkou ni utsushita' (The government put the new tax system into effect).

Another fascinating place you hear jikkou is in the context of crime and detective dramas (keiji dorama). When police are identifying who committed a crime, they distinguish between the 'kyousa-sha' (instigator) and the 'jikkou-han' (the one who actually did the deed). If you enjoy watching shows like 'Aibou' or reading Edogawa Ranpo, you will hear jikkou-han frequently. It adds a layer of clinical, legal precision to the narrative. Similarly, in sports, a coach might praise a team's jikkou-ryoku if they successfully carried out a complex play or strategy during a match. It’s not just about effort; it’s about the precision of following the plan.

In Education

Teachers use 'jikkou' to encourage students to follow through on their study plans. 'Keikaku dake de naku, jikkou ga taisetsu desu' (Not just planning, but execution is important).

Finally, you will hear jikkou in motivational speeches and self-help contexts. The Japanese phrase 'Yugen-jikkou' (有言実行) is a popular idiom meaning 'carrying out what one has said' or 'being as good as one's word.' It is the opposite of 'fugen-jikkou' (action without words/doing things silently). People use 'yugen-jikkou' to describe someone who is reliable and proactive. Whether it's a politician promising reform or a student promising to pass an exam, jikkou is the ultimate test of their sincerity. In a culture that values harmony and results, being able to 'jikkou' what you promise is a key component of social trust.

Everyday Life

Even in simple tasks, like following a recipe, if you finally start cooking after reading the instructions for an hour, you are 'jikkou' (executing) the recipe.

One of the most common mistakes English speakers make when using 実行 (jikkou) is overusing it for simple, everyday actions. While 'execute' and 'do' can sometimes overlap in English, jikkou is generally reserved for things that have a 'plan' or 'structure' behind them. For example, you wouldn't usually say 'shukudai o jikkou suru' (execute homework) unless the homework was a massive, multi-stage project. For regular homework, 'shukudai o yaru' or 'shukudai o suru' is much more natural. Using jikkou for trivial tasks can make you sound like a robot or someone who is being overly dramatic about their daily chores.

Mistake: Jikkou vs. Jisshi

Learners often confuse 'jikkou' with 'jisshi' (実施). While both mean implementation, 'jisshi' is used more for events, tests, or public policies (e.g., 'The exam was implemented/held'). 'Jikkou' is more about the act of carrying out a specific plan or command.

Another common error is the confusion between jikkou (実行) and shikkou (執行). As mentioned before, shikkou is used for legal enforcement, like 'enforcing' a contract or 'executing' a legal sentence. If you tell your boss you are going to 'shikkou' the marketing plan, it sounds like you are a court bailiff coming to seize the company's assets. Always stick to jikkou for business plans and software. Furthermore, be careful with the particle usage. While 'jikkou suru' is common, forgetting the 'o' (を) when there is a direct object can make the sentence grammatically incomplete in formal writing, although it's often dropped in casual speech.

Mistake: Jikkou vs. Okonau

'Okonau' (行う) is a general word for 'to carry out' or 'to perform.' It is more versatile than 'jikkou.' If you aren't sure if a plan is formal enough for 'jikkou,' 'okonau' is usually a safe bet.

Finally, watch out for the pronunciation. The double 'k' sound in jikkou is important. If you say 'jikou,' it could mean 'prescription' or 'statute of limitations' (時効) or 'matters/items' (事項). The small 'tsu' (っ) that creates the 'kk' sound is vital for clarity. In a business meeting, confusing 'execution' with 'statute of limitations' could lead to some very confused colleagues. Practice the short 'ji' followed by a sharp stop and then the 'kou' sound to ensure you are understood correctly every time.

Summary of Nuance

Use 'jikkou' for: Plans, software, commands, strategies, and criminal acts. Avoid for: Daily chores, eating, or realizing abstract dreams.

Japanese has several words that overlap with 実行 (jikkou), and choosing the right one depends on the context and the specific nuance you want to convey. The most common alternative is jisshi (実施). While jikkou focuses on the act of carrying out a plan, jisshi is often used for the formal implementation of systems, rules, or public events. For example, a school 'implements' (jisshi) an exam, but a student 'executes' (jikkou) their study plan. Another close relative is suikou (遂行). This word is even more formal and implies 'accomplishing' or 'completing' a mission or duty, often despite difficulties. It is frequently used in military or high-level bureaucratic contexts.

Comparison: Jikkou vs. Jitsugen

'Jikkou' is the process of doing. 'Jitsugen' (実現) is the result of something becoming real. You 'jikkou' a plan to 'jitsugen' a goal.

For technical or operational contexts, you might encounter un'you (運用). This means 'operation' or 'management' of a system that is already running. While jikkou might be the act of starting a program, un'you is the ongoing process of keeping it running smoothly. In the world of art or performance, you would use jouen (上演) for 'performing' a play or ensou (演奏) for 'performing' music. These are very specific types of 'execution' that jikkou does not cover. Understanding these boundaries prevents you from using a business term in a creative setting.

Comparison: Jikkou vs. Okonau

'Okonau' is the native Japanese (kun-yomi) verb for 'to do/carry out.' It is less formal than 'jikkou' and can be used for almost any action, from holding a meeting to conducting an experiment.

Lastly, consider hatasu (果たす). This verb means 'to fulfill' or 'to carry out' a promise, role, or responsibility. It is often used in phrases like 'yakuwari o hatasu' (to fulfill a role). While jikkou is about the action itself, hatasu carries a sense of duty and completion. By learning these synonyms, you can move from a basic 'one-word-fits-all' approach to a more nuanced and expressive level of Japanese. Each of these words paints a slightly different picture of 'doing,' allowing you to be precise about whether you are implementing a law, fulfilling a promise, or running a computer program.

Nuance Table

Jikkou: Action-focused, plans/code.
Jisshi: Formal/Public, events/rules.
Suikou: Mission-focused, duties.
Jitsugen: Result-focused, dreams/goals.