CJK Unified Ideographs (Unicode block)

For a list of all CJK characters encoded in Unicode, see CJK Unified Ideographs.
CJK Unified Ideographs
RangeU+4E00..U+9FFF
(20,992 code points)
PlaneBMP
ScriptsHan
Assigned20,992 code points
Unused0 reserved code points
Unicode version history
1.0.1 (1992)20,902 (+20,902)
4.1 (2005)20,924 (+22)
5.1 (2008)20,932 (+8)
5.2 (2009)20,940 (+8)
6.1 (2012)20,941 (+1)
8.0 (2015)20,950 (+9)
10.0 (2017)20,971 (+21)
11.0 (2018)20,976 (+5)
13.0 (2020)20,989 (+13)
14.0 (2021)20,992 (+3)
Unicode documentation
Code chart ∣ Web page
Note: [1][2]

CJK Unified Ideographs is a Unicode block containing the most common CJK ideographs used in modern Chinese, Japanese, Korean and Vietnamese characters. When contrasted with other blocks containing CJK Unified Ideographs, it is also referred to as the Unified Repertoire and Ordering (URO).[3]

The block has hundreds of variation sequences defined for standardized variants.[4]

It also has tens of thousands of ideographic variation sequences registered in the Unicode Ideographic Variation Database (IVD).[5][6] These sequences specify the desired glyph variant for a given Unicode character.

  1. ^ "Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
  2. ^ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.
  3. ^ Lunde, Ken (2012-09-16). "URO". CJK Type Blog. Adobe Inc.
  4. ^ "Unicode Character Database: Standardized Variation Sequences". The Unicode Consortium.
  5. ^ "Ideographic Variation Database". Unicode Consortium.
  6. ^ "UTS #37, Unicode Ideographic Variation Database". Unicode Consortium.