Meaning
宰 (サイ) means to govern, administer, or preside — always from a position of real authority. The image is concrete: a steward managing a great household, a court official running affairs on behalf of a ruler, a head of state directing a nation. Classical Japanese used 宰 for high officials directly beneath a monarch, roughly equivalent to a prime minister or chancellor. That sense survives in two key modern compounds: 宰相 (さいしょう, prime minister) and 主宰 (しゅさい, to preside over or lead).
The character breaks into two parts. On top sits 宀 (うかんむり), the roof radical — shelter, the space where people gather under someone's authority. Below is 辛, an ancient pictograph of a sharp tool. In early Chinese writing, this tool branded slaves and inscribed punishment decrees on oracle bones. It carries sharpness, severity, and the blunt exercise of power. Put them together: sharp authority under a roof — a steward who runs everything and has the means to enforce it. Over centuries this image expanded from household management to the governance of entire kingdoms.
Ten strokes, 宀 radical, secondary Jōyō kanji (high school level). 宰 rarely surfaces in everyday speech but appears constantly in historical texts, political commentary, and classical literature. N1 candidates need to recognize its major compounds on sight.
Readings
On'yomi (音読み) — Chinese-derived readings
One reading: サイ (SAI). Borrowed from classical Chinese, where 宰 (Mandarin: zǎi) designated officials who governed on behalf of a ruler. サイ only appears inside compound words — never as a standalone word. Every word using this kanji carries this single reading.
- 宰相 (saishō) — prime minister, chancellor; historically the chief official serving a monarch, now used in journalism and literature as a dignified synonym for 首相
- 主宰 (shusai) — to preside over, organize, or head; used when someone takes charge of an event, publication, or organization as its primary leader
- 宰領 (sairyō) — superintendence, oversight; an older term for overseeing people and operations, now largely confined to historical and Meiji-era texts
- 宰臣 (saishin) — minister, court official; a high-ranking adviser in an imperial or feudal court (classical and historical usage)
Kun'yomi (訓読み) — Native Japanese readings
No kun'yomi. The Jōyō system lists none, and none appears in modern dictionaries. 宰 operates entirely through サイ — every word containing it will be a compound.
Common Words & Compounds
宰 is infrequent but well-placed. Its compounds appear steadily in political history, formal writing, and organizational contexts. Here are the ones worth knowing.
Political and Historical Terms
- 宰相 (saishō) — prime minister, chancellor; the highest official in a government. Historically, the chief adviser serving a monarch directly. In modern journalism, a literary synonym for 首相.
- 名宰相 (mei saishō) — celebrated prime minister; used for heads of government whose historical legacy is considered exceptional.
- 宰臣 (saishin) — court official, minister; a high-ranking adviser in an ancient or feudal court. Found mainly in historical novels and classical texts.
- 大宰府 (Dazaifu) — the Dazaifu governmental offices; a major administrative body established in Kyushu during the Nara period, governing western Japan and managing diplomatic relations with China and Korea. The 宰 in the name reflects its founding role as a governing institution.
- 宰制 (saisei) — governance, control, dominion; a literary term for the exercise of ruling authority over a domain or people.
Organizational and Leadership Terms
- 主宰 (shusai) — to preside over, organize, or head; the most common modern use of 宰. Describes the main organizer or chair of a group, event, or publication.
- 主宰者 (shusaisha) — organizer, presiding person, chairman; the individual who heads a group, research body, or literary journal.
- 主宰する (shusai suru) — to preside over, lead, and organize; the verbal form describing someone who actively runs an ongoing enterprise.
- 宰領 (sairyō) — superintendence, supervision; an older term for directing the work of others. Encountered in Meiji-era and earlier texts, rarely in contemporary writing.
- 宰相府 (saishōfu) — prime minister's office, chancellery; used primarily for the governmental offices of foreign countries in historical or formal contexts.
Example Sentences
彼は地域の文化サークルを主宰している。
Kare wa chiiki no bunka sākuru wo shusai shite iru.
He presides over the local cultural circle.
その宰相は歴史に名を残した偉大な指導者だった。
Sono saishō wa rekishi ni na wo nokoshita idai na shidōsha datta.
That prime minister was a great leader who left his mark on history.
主宰者として、すべての決定に最終的な責任を持つ。
Shusaisha to shite, subete no kettei ni saishūteki na sekinin wo motsu.
As the organizer, one bears ultimate responsibility for all decisions.
その老教授は毎週セミナーを主宰していた。
Sono rōkyōju wa maishū seminā wo shusai shite ita.
That veteran professor used to run a seminar every week.
古代中国では、宰相は皇帝を補佐する最高位の官僚だった。
Kodai Chūgoku de wa, saishō wa kōtei wo hosa suru saikōi no kanryō datta.
In ancient China, the prime minister was the highest-ranking official who assisted the emperor.
彼女が主宰する研究会には、全国から専門家が集まる。
Kanojo ga shusai suru kenkyūkai ni wa, zenkoku kara senmonka ga atsumaru.
Specialists from across the country gather at the research group she heads.
江戸時代の老中は、事実上の宰相のような役割を果たした。
Edo jidai no rōjū wa, jijitsujō no saishō no yō na yakuwari wo hatashita.
The Senior Councilors of the Edo period filled a role that was, in effect, that of a prime minister.
大宰府は奈良時代に設置された重要な行政機関だ。
Dazaifu wa Nara jidai ni secchi sareta jūyō na gyōsei kikan da.
Dazaifu was an important administrative institution established during the Nara period.
ボランティア活動を主宰するのは大変だが、充実感がある。
Borantia katsudō wo shusai suru no wa taihen da ga, jūjitsukan ga aru.
Running a volunteer program is demanding, but it brings real satisfaction.
その国では、宰相が議会に対して責任を負う制度が確立されている。
Sono kuni de wa, saishō ga gikai ni taishite sekinin wo ou seido ga kakuritsu sarete iru.
In that country, the system requires the prime minister to answer to parliament.
Memory Tip
Picture a strict steward beneath a grand roof (宀), gripping a sharp staff (辛) — the old mark of authority, and the power to punish. Everything under that roof answers to this person. Scale it up: the steward becomes the 宰相, governing not a household but an entire nation. Roof + sharp authority = the one in charge. That's 宰.