Meaning
The kanji 為 (い) is incredibly versatile in Japanese, serving as a core character that expresses 'doing,' 'making,' 'acting,' 'for the sake of,' and even 'to become.' Its wide array of meanings makes it indispensable for understanding many advanced expressions.
Historically, 為 is believed to be a pictograph or ideograph. It depicts a hand (爪, at the top) leading or controlling an elephant (象, simplified at the bottom). This imagery initially conveyed 'to lead,' 'to manage,' or 'to do.' The visual of a hand guiding a powerful animal naturally evolved to represent initiating action, managing tasks, and performing deeds. This concept of 'doing' or 'making' something through one's own effort is deeply embedded in its origins. Eventually, its usage expanded to include purpose ('for the sake of'), cause ('because of'), and transformation ('to become').
In modern Japanese, 作る (つくる) is commonly used for 'to make' and する for 'to do.' However, 為 retains a more formal or specific nuance. It often appears in compounds or specific grammatical structures to denote purpose or an intentional act. This character has 9 strokes and is a Joyo Kanji, despite typically being introduced at the N1 JLPT level. Its advanced placement is due to its complex usage and multiple readings.
Readings
On'yomi (音読み) — Chinese-derived readings
The primary On'yomi reading for 為 is イ (i). This reading is frequently encountered in more formal or abstract compound words, often relating to actions, artificiality, or administration.
イ (i): Used in words describing actions, governance, or artificial constructs.
行為 (kōi) — act; deed; conduct. This refers to a specific action or behavior.
作為 (sakui) — positive action; act of commission (as opposed to inaction). It emphasizes an intentional act. For example, 積極的な作為 (sekkyokuteki na sakui, active measure).
人為 (jin'i) — human work; human intervention; artificial. Denotes something made or caused by humans.
無為 (mui) — inaction; idleness; doing nothing. The opposite of action.
為政 (isei) — governance; administration. Refers to the act of ruling or managing a state.
Kun'yomi (訓読み) — Native Japanese readings
為 has several important Kun'yomi readings, each with distinct usage patterns. These readings connect the kanji to fundamental native Japanese verbs and particles.
ため (tame): This is perhaps the most common and versatile kun'yomi, meaning 'for the sake of,' 'for the purpose of,' 'because of,' or 'benefit.' It functions as a noun or part of a grammatical particle.
〜の為に (〜 no tame ni) — for the sake of ~; for the purpose of ~. This phrase indicates the objective or beneficiary of an action. Example: 家族の為に働く (kazoku no tame ni hataraku, to work for one's family).
その為 (sono tame) — therefore; for that reason. Used to indicate a consequence or logical conclusion.
誰かの為 (dareka no tame) — for someone's sake.
な.す (nasu): A transitive verb meaning 'to do,' 'to make,' 'to accomplish,' or 'to form.' It carries a slightly more formal or definitive nuance than する.
為す (nasu) — to do; to make; to accomplish. Often implies bringing something to fruition or forming something. Example: 仕事を為す (shigoto o nasu, to perform one's work).
為し遂げる (nashitogeru) — to accomplish; to achieve completely. A compound verb emphasizing successful completion.
大業を為す (taigyō o nasu) — to accomplish a great undertaking.
す.る (suru): While する is typically written in hiragana, 為る (する) is its kanji representation, meaning 'to do' or 'to make.' This is the most common and fundamental verb in Japanese. In modern usage, writing する with kanji (為る) is rare, but it reveals the word's origin.
為る (suru) — to do; to make.
為すべきこと (subeki koto) — things that should be done.
な.る (naru): Means 'to become.' While 成る is far more common for 'to become,' 為る (なる) is an older or more formal usage, especially in classical Japanese or specific fixed expressions.
為る (naru) — to become (archaic or literary). For example, 為る程 (naruhodo, indeed; I see).
つく.る (tsukuru): Meaning 'to make' or 'to create.' Similar to なす, but less common with 為 alone compared to 作る (つくる). Primarily found in older texts.
Common Words & Compounds
Here are some common words and compounds featuring 為, organized by their thematic usage.
Actions & Deeds
- 行為 (kōi) — an act; a deed; conduct.
- 作為 (sakui) — positive action; an act of commission.
- 無為 (mui) — inaction; idleness; doing nothing.
- 所為 (shoi) — an act; a deed; fault; responsibility (often in the context of "due to someone's fault").
- 為し遂げる (nashitogeru) — to accomplish; to achieve completely.
Purpose & Reason
- 為に (tame ni) — for the sake of; for the purpose of; because of.
- その為 (sono tame) — therefore; for that reason.
- 何の為に (nan no tame ni) — for what purpose?
- 公の為 (ōyake no tame) — for the public good; for the common welfare.
Governance & Artificiality
- 為政者 (iseisha) — a politician; a ruler; an administrator.
- 人為 (jin'i) — human work; artificiality; human intervention.
- 天為 (ten'i) — divine will; natural process (antonym to 人為).
Finance & Exchange (Irregular Reading)
- 為替 (kawase) — money order; exchange (e.g., foreign exchange). This is a highly irregular but very common reading.
- 為替レート (kawase rēto) — exchange rate.
Example Sentences
彼は会社の為に休日も働いた。
Kare wa kaisha no tame ni kyūjitsu mo hataraita.
He worked even on holidays for the sake of the company.
学生は夢を為し遂げるために努力した。
Gakusei wa yume o nashitogeru tame ni doryoku shita.
The student made an effort to achieve their dream.
その行為は法律に反する。
Sono kōi wa hōritsu ni hansuru.
That act goes against the law.
人為的なミスが事故の原因だった。
Jin'iteki na misu ga jiko no gen'in datta.
A human error was the cause of the accident.
彼は国民の為を思い、政策を立案した。
Kare wa kokumin no tame o omoi, seisaku o ritsuan shita.
Thinking of the nation's welfare, he drafted a policy.
為替レートの変動が経済に影響を与える。
Kawase rēto no hendō ga keizai ni eikyō o ataeru.
Fluctuations in the exchange rate affect the economy.
為すべきことは多いが、一歩ずつ進もう。
Subeki koto wa ooi ga, ippo zutsu susumō.
There are many things that should be done, but let's proceed step by step.
為政者は国民の声に耳を傾けるべきだ。
Iseisha wa kokumin no koe ni mimi o katamukeru beki da.
Rulers should listen to the voices of the people.
彼の無為が事態をさらに悪化させた。
Kare no mui ga jitai o sara ni akka saseta.
His inaction made the situation even worse.
Memory Tip
To help remember 為, focus on its components and historical meaning. The top part, 爪 (つめ), resembles a hand or a claw, while the bottom part is a simplified form of 象 (ぞう), an elephant. Imagine a hand (爪) guiding or managing a powerful elephant (象). This image directly connects to the kanji's core meanings of 'doing,' 'making,' 'managing,' and 'acting for' something. Visualize yourself actively performing an action or managing a situation, perhaps even making something happen for the elephant's sake! This mnemonic vividly illustrates 為's versatility, showing how it encompasses both direct actions and actions driven by a specific purpose.