CJK Radicals Supplement

CJK Radicals Supplement is a Unicode block containing alternative, often positional, forms of the Kangxi radicals. They are used as headers in dictionary indices and other CJK ideograph collections organized by radical-stroke.

CJK Radicals Supplement
RangeU+2E80..U+2EFF
(128 code points)
PlaneBMP
ScriptsHan
Assigned115 code points
Unused13 reserved code points
Unicode version history
3.0115 (+115)
Note: [1][2]

Block
CJK Radicals Supplement[1][2]
Official Unicode Consortium code chart (PDF)
 0123456789ABCDEF
U+2E8x ⺀ ⺁ ⺂ ⺃ ⺄ ⺅ ⺆ ⺇ ⺈ ⺉ ⺊ ⺋ ⺌ ⺍ ⺎ ⺏
U+2E9x ⺐ ⺑ ⺒ ⺓ ⺔ ⺕ ⺖ ⺗ ⺘ ⺙ ⺛ ⺜ ⺝ ⺞ ⺟
U+2EAx ⺠ ⺡ ⺢ ⺣ ⺤ ⺥ ⺦ ⺧ ⺨ ⺩ ⺪ ⺫ ⺬ ⺭ ⺮ ⺯
U+2EBx ⺰ ⺱ ⺲ ⺳ ⺴ ⺵ ⺶ ⺷ ⺸ ⺹ ⺺ ⺻ ⺼ ⺽ ⺾ ⺿
U+2ECx ⻀ ⻁ ⻂ ⻃ ⻄ ⻅ ⻆ ⻇ ⻈ ⻉ ⻊ ⻋ ⻌ ⻍ ⻎ ⻏
U+2EDx ⻐ ⻑ ⻒ ⻓ ⻔ ⻕ ⻖ ⻗ ⻘ ⻙ ⻚ ⻛ ⻜ ⻝ ⻞ ⻟
U+2EEx ⻠ ⻡ ⻢ ⻣ ⻤ ⻥ ⻦ ⻧ ⻨ ⻩ ⻪ ⻫ ⻬ ⻭ ⻮ ⻯
U+2EFx ⻰ ⻱ ⻲ ⻳
Notes
1.^ As of Unicode version 13.0
2.^ Grey areas indicate non-assigned code points

History

The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Radicals Supplement block:

VersionFinal code points[lower-alpha 1]CountL2 IDWG2 IDIRG IDDocument
3.0U+2E80..2E99, 2E9B..2EF3115L2/97-025N1492N407Proposal Summary Form for Ideographic Radical Supplement, 1996-06-27
N1432N367Proposal Summary Form: Ideographic Radical Supplement, 1996-08-01
N1453Ksar, Mike; Umamaheswaran, V. S. (1996-12-06), "9.8 Ideographic Radical Supplement", WG 2 Minutes - Quebec Meeting 31
N429TCA's Position Concerning on the WG2's Comments of Ideographic Radical Supplement, 1997-01-15
L2/97-023N1486N437IRG #8 Resolutions, 1997-01-16
N1489Supplement to Ideographic Components and Composition Schemes, 1997-01-16
N1490N436Response to WG2 question on Ideographic Structure Characters, 1997-01-16
L2/97-030N1503 (pdf, doc)Umamaheswaran, V. S.; Ksar, Mike (1997-04-01), "9.4", Unconfirmed Minutes of WG 2 Meeting #32, Singapore; 1997-01-20--24
L2/97-114N1544 (html, doc)N453Sato, T. K. (1997-04-08), Questions on the "Han structure method" described in WG2 N1490 (IRG N436)
N454Addition of new radicals, 1997-04-08
N455Japanese Proposal to the Radical Supplement, 1997-04-14
L2/97-162N1617N480Zhang, Zhoucai (1997-06-27), Ideographic Radical Supplement
L2/97-288N1603Umamaheswaran, V. S. (1997-10-24), "9.3", Unconfirmed Meeting Minutes, WG 2 Meeting # 33, Heraklion, Crete, Greece, 20 June – 4 July 1997
L2/98-106N1732Zhang, Zhoucai (1998-03-19), CJK Radical Suppliment [sic]
L2/98-332N1923Combined PDAM registration and consideration ballot on WD for ISO/IEC 10646-1/Amd. 15, AMENDMENT 15: Kang Xi radicals and CJK radicals supplement, 1998-10-28
L2/98-415Jenkins, John (1998-12-01), Comments on the CJK Radicals Supplement
L2/99-010N1903 (pdf, html, doc)Umamaheswaran, V. S. (1998-12-30), "10.4", Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25
L2/98-419 (pdf, doc)Aliprand, Joan (1999-02-05), "CJK Radicals Supplement", Approved Minutes -- UTC #78 & NCITS Subgroup L2 # 175 Joint Meeting, San Jose, CA -- December 1-4, 1998
L2/99-073N1968 (html, doc)Summary of Voting on SC 2 N 3213, PDAM ballot on WD for 10646-1/Amd. 15: Kang Xi radicals and CJK radicals supplement, 1999-02-08
L2/99-119Text for FPDAM ballot of ISO/IEC 10646, Amd. 15 - Kang Xi radicals and CJK radicals supplement, 1999-04-07
L2/99-232N2003Umamaheswaran, V. S. (1999-08-03), Minutes of WG 2 meeting 36, Fukuoka, Japan, 1999-03-09--15
L2/99-252N2065Summary of Voting on SC 2 N 3311, ISO 10646-1/FPDAM 15 - Kang Xi radicals and CJK radicals supplement, 1999-08-19
L2/99-299N2121Disposition of Comments Report on SC 2 N 3311, ISO/IEC 10646-1/FPDAM 15 AMENDMENT 15: Kang Xi radicals and CJK radicals supplement, 1999-09-20
L2/99-300N2122Paterson, Bruce (1999-09-21), Revised Text for FDAM ballot of ISO/IEC 10646-1/FDAM 15, AMENDMENT 15: Kang Xi radicals and CJK radicals supplement
L2/00-010N2103Umamaheswaran, V. S. (2000-01-05), Minutes of WG 2 meeting 37, Copenhagen, Denmark: 1999-09-13--16
L2/00-044Summary of FDAM voting: ISO 10646 Amendment 15: Kang Xi radicals and CJK radicals supplement, 2000-01-31
N5122"M68.12", Unconfirmed minutes of WG 2 meeting 68, 2019-12-31
L2/19-212RN5069RLunde, Ken (2019-06-20), Proposal to change the font for the CJK Radicals Supplement & Kangxi Radicals blocks
L2/19-270Moore, Lisa (2019-08-02), "B.4.4 Proposal to change the font for the CJK Radicals Supplement and Kangxi Radicals blocks", UTC #160 Minutes
  1. Proposed code points and characters names may differ from final code points and names

See also

References
  1. "Unicode character database". The Unicode Standard. Retrieved 2016-07-09.
  2. "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2016-07-09.
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