改

JŌYŌ KANJI · Grade 4

reformation

reformation · change · modify · mend

7 strokesRadical 66U+6539
01

Readings

Official Jōyō readings in table order

On’yomi 音読み

カイ

Kun’yomi 訓読み

あらためるあらたまる
02

Origin and meaning

Original sense: changing what came before.

Earlier sense recorded in the sourcechanging what came before
Meanings in the learning dataset todayreformation · change · modify · mend

Read the source entry ↗

03

Written form

No parenthesized form is given in the official Jōyō index for this character.

Dictionary radical攴ぼくづくり · strike / hit
Stroke count7May vary for alternate forms.
UnicodeU+6539Modern character encoding, not an origin date.

Compare manuscript and printed examples in the HNG historical glyph archive ↗. Where available, its dated samples document written forms; they do not establish the first use of this character in Japan.

04

Examples in the official table

  • 改造,改革,更改
  • 改める,改めて〔副〕
  • 改まる
05

When did it enter Japanese?

Chinese characters reached Japan through a long process of contact. Early inscribed objects and sixth-century Japanese names are documented; this is context for the writing system, not a first date for 改.

改 appears in the current Jōyō kanji table published on 30 November 2010. This records modern standard status, not the date the character was first used in Japan.

A dated first Japanese use for 改 has not been verified in the sources attached to this entry.

Agency for Cultural Affairs: writing history ↗ · 2010 Jōyō notice ↗

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