U+5B66 was added to Unicode in version 1.1 (1993). It belongs to the block CJK Unified Ideographs in the Basic Multilingual Plane.

This character is a Other Letter and is mainly used in the Han script. The Unihan Database defines it as learning, knowledge; school. Its Pīnyīn pronunciation is xu.

The glyph is not a composition. It has a Wide East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. The glyph can, under circumstances, be confused with 1 other glyphs. In text U+5B66 behaves as Ideographic regarding line breaks. It has type OLetter for sentence and Other for word breaks. The Grapheme Cluster Break is Any.


System Representation
UTF-8 E5 AD A6
UTF-16 5B 66
UTF-32 00 00 5B 66
URL-Quoted %E5%AD%A6
HTML-Escape 学
Wrong windows-1252 Mojibake å­¦
Encoding: JIS0208 (hex bytes) B3 D8
Pīnyīn xu
IRG_GSource G0-5127
IRG_HSource H-89
IRG_JSource J0-3358
IRG_KSource K2-2D5E
IRG_TSource T4-2623
CCCII 273A60
CNS1986 E-625C
CNS1992 3-625C
EACC 273A60
GB0 4907
HKSCS 8961
Jis0 1956
MainlandTelegraph 1331

Related Characters

  • ㈻
  • ㊫


  • ㈻


Complete Record

Property Value
Age (age) 1.1
Unicode Name (na) CJK UNIFIED IDEOGRAPH-5B66
Unicode 1 Name (na1)
Block (blk) CJK
General Category (gc) Other Letter
Script (sc) Han
Bidirectional Category (bc) Left To Right
Combining Class (ccc) Not Reordered
Decomposition Type (dt) None
Decomposition Mapping (dm) 学
Lowercase (Lower)
Simple Lowercase Mapping (slc) 学
Lowercase Mapping (lc) 学
Uppercase (Upper)
Simple Uppercase Mapping (suc) 学
Uppercase Mapping (uc) 学
Simple Titlecase Mapping (stc) 学
Titlecase Mapping (tc) 学
Case Folding (cf) 学
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi Control (Bidi_C)
Bidi Mirrored (Bidi_M)
Bidi Paired Bracket (bpb) 学
Bidi Paired Bracket Type (bpt) None
Cased (Cased)
Composition Exclusion (CE)
Case Ignorable (CI)
Full Composition Exclusion (Comp_Ex)
Changes When Casefolded (CWCF)
Changes When Casemapped (CWCM)
Changes When NFKC Casefolded (CWKCF)
Changes When Lowercased (CWL)
Changes When Titlecased (CWT)
Changes When Uppercased (CWU)
Dash (Dash)
Deprecated (Dep)
Default Ignorable Code Point (DI)
Diacritic (Dia)
East Asian Width (ea) Wide
Extender (Ext)
FC NFKC Closure (FC_NFKC) 学
Grapheme Cluster Break (GCB) Any
Grapheme Base (Gr_Base)
Grapheme Extend (Gr_Ext)
Hex Digit (Hex)
Hangul Syllable Type (hst) Not Applicable
Hyphen (Hyphen)
ID Continue (IDC)
Ideographic (Ideo)
ID Start (IDS)
IDS Binary Operator (IDSB)
IDS Trinary Operator and (IDST)
Indic Positional Category (InPC) NA
Indic Syllabic Category (InSC) Other
ISO 10646 Comment (isc)
Joining Group (jg) No_Joining_Group
Join Control (Join_C)
Jamo Short Name (JSN)
Joining Type (jt) Non Joining
kIICore (kIICore) AGJ
kIRG_GSource (kIRG_GSource) G0-5127
kIRG_HSource (kIRG_HSource) H-89
kIRG_JSource (kIRG_JSource) J0-3358
kIRG_KSource (kIRG_KSource) K2-2D5E
kIRG_TSource (kIRG_TSource) T4-2623
kIRGDaeJaweon (kIRGDaeJaweon) 0548.060
kIRGDaiKanwaZiten (kIRGDaiKanwaZiten) 06974
kIRGHanyuDaZidian (kIRGHanyuDaZidian) 21014.030
kIRGKangXi (kIRGKangXi) 0279.121
kCangjie (kCangjie) FBND
kCantonese (kCantonese) hok6
kCCCII (kCCCII) 273A60
kCNS1986 (kCNS1986) E-625C
kCNS1992 (kCNS1992) 3-625C
kDaeJaweon (kDaeJaweon) 0548.060
Unihan Definition (kDefinition) learning, knowledge; school
kEACC (kEACC) 273A60
kFourCornerCode (kFourCornerCode) 3240.7 9040.7
kFrequency (kFrequency) 1
kGB0 (kGB0) 4907
kHanYu (kHanYu) 21014.030
kHanyuPinlu (kHanyuPinlu) xué(5640)
kHKSCS (kHKSCS) 8961
kJapaneseKun (kJapaneseKun) MANABU
kJapaneseOn (kJapaneseOn) GAKU
kJis0 (kJis0) 1956
kKangXi (kKangXi) 0279.121
kKorean (kKorean) HAK
kMainlandTelegraph (kMainlandTelegraph) 1331
kMandarin (kMandarin) xué
kMorohashi (kMorohashi) 06974
kNelson (kNelson) 1271
Radical Stroke Count (Adobe Japan 1-6) (kRSAdobe_Japan1_6) C+1462+39.3.5 C+1462+42.3.5
Radical Stroke Count (KangXi) (kRSKangXi) 39.5
Radical Stroke Count (Unicode) (kRSUnicode) 39.5
Stroke Number (kTotalStrokes) 8
Traditional Variant (kTraditionalVariant) 學
kXHC1983 (kXHC1983) 1308.120:xué
Line Break (lb) Ideographic
Logical Order Exception (LOE)
Math (Math)
Noncharacter Code Point (NChar)
NFC Quick Check (NFC_QC) Yes
NFD Quick Check (NFD_QC) Yes
NFKC Casefold (NFKC_CF) 学
NFKC Quick Check (NFKC_QC) Yes
NFKD Quick Check (NFKD_QC) Yes
Numeric Type (nt) None
Numeric Value (nv) NaN
Other Alphabetic (OAlpha)
Other Default Ignorable Code Point (ODI)
Other Grapheme Extend (OGr_Ext)
Other ID Continue (OIDC)
Other ID Start (OIDS)
Other Lowercase (OLower)
Other Math (OMath)
Other Uppercase (OUpper)
Pattern Syntax (Pat_Syn)
Pattern White Space (Pat_WS)
Quotation Mark (QMark)
Radical (Radical)
Sentence Break (SB) OLetter
Simple Case Folding (scf) 学
Script Extension (scx) Han
Soft Dotted (SD)
STerm (STerm)
Terminal Punctuation (Term)
Unified Ideograph (UIdeo)
Variation Selector (VS)
Word Break (WB) Other
White Space (WSpace)
XID Continue (XIDC)
XID Start (XIDS)
Expands On NFC (XO_NFC)
Expands On NFD (XO_NFD)
Expands On NFKC (XO_NFKC)
Expands On NFKD (XO_NFKD)