Japanese symbol for “canonical”

正準

せいじゅん

Romaji: seijun

canonical

In Japanese, canonical is 正準, read せいじゅん (seijun).

Before using these characters for a tattoo, check them with a native speaker. Dictionary words often have several meanings, and the right choice depends on context.

Meanings

adj-f canonical

Kanji and stroke order

正

correct, justice, righteous

on: セイ、ショウ
kun: ただ.しい、ただ.す、まさ、まさ.に

5 strokes · JLPT 3

準

semi-, correspond to, proportionate to

on: ジュン
kun: じゅん.じる、じゅん.ずる、なぞら.える、のり

13 strokes · JLPT 2

Related words

Words that share a kanji.

Word	Reading	Meaning
正直	しょうじき shoujiki	honest; frank; candid
修正	しゅうせい shuusei	amendment; correction; revision
改正	かいせい kaisei	revision; amendment; alteration
正義	せいぎ seigi	justice; right; righteousness
正式	せいしき seishiki	formal; official; regular
不正	ふせい fusei	injustice; unfairness; wrongdoing
準備	じゅんび junbi	preparation; arrangements; getting ready
基準	きじゅん kijun	standard; criterion; norm

Data: JMdict (CC BY-SA 4.0); KANJIDIC2 (CC BY-SA 4.0); KanjiVG (CC BY-SA 3.0); wordfreq (CC BY-SA 4.0 (data)). Retrieved 2026-10-22.