U+51B1 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 freezing; stopped up, closed off. Its Pīnyīn pronunciation is .

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. In text U+51B1 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 86 B1
UTF-16 51 B1
UTF-32 00 00 51 B1
URL-Quoted %E5%86%B1
HTML-Escape 冱
Wrong windows-1252 Mojibake 冱
Encoding: JIS0208 (hex bytes) D1 D4
IRG_GSource G0-597C
IRG_HSource HB2-
IRG_JSource J0-5154
IRG_KPSource KP1-376
IRG_KSource K1-736E
IRG_TSource T2-217B
BigFive C9BC
CCCII 216A26
CNS1986 2-217B
CNS1992 2-217B
EACC 216A26
GB0 5792
GB1 5792
Jis0 4952
KPS1 3765
KSC1 8378
MainlandTelegraph 0395
TaiwanTelegraph 0395


Complete Record

Property Value
Age (age) 1.1
Unicode Name (na) CJK UNIFIED IDEOGRAPH-51B1
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) 冱
Lowercase (Lower)
Simple Lowercase Mapping (slc) 冱
Lowercase Mapping (lc) 冱
Uppercase (Upper)
Simple Uppercase Mapping (suc) 冱
Uppercase Mapping (uc) 冱
Simple Titlecase Mapping (stc) 冱
Titlecase Mapping (tc) 冱
Case Folding (cf) 冱
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi Control (Bidi_C)
Bidi Mirrored (Bidi_M)
Bidi Paired Bracket (bpb) 冱
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) 冱
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
kIRG_GSource (kIRG_GSource) G0-597C
kIRG_HSource (kIRG_HSource) HB2-
kIRG_JSource (kIRG_JSource) J0-5154
kIRG_KPSource (kIRG_KPSource) KP1-376
kIRG_KSource (kIRG_KSource) K1-736E
kIRG_TSource (kIRG_TSource) T2-217B
kIRGDaeJaweon (kIRGDaeJaweon) 0294.160
kIRGDaiKanwaZiten (kIRGDaiKanwaZiten) 01613
kIRGHanyuDaZidian (kIRGHanyuDaZidian) 10295.070
kIRGKangXi (kIRGKangXi) 0131.260
kBigFive (kBigFive) C9BC
kCangjie (kCangjie) IMMVM
kCantonese (kCantonese) wu6
kCCCII (kCCCII) 216A26
kCihaiT (kCihaiT) 168.401
kCNS1986 (kCNS1986) 2-217B
kCNS1992 (kCNS1992) 2-217B
kDaeJaweon (kDaeJaweon) 0294.160
Unihan Definition (kDefinition) freezing; stopped up, closed off
kEACC (kEACC) 216A26
kFourCornerCode (kFourCornerCode) 3111.7
kGB0 (kGB0) 5792
kGB1 (kGB1) 5792
kHangul (kHangul)
kHanYu (kHanYu) 10295.070
kJapaneseKun (kJapaneseKun) KOORU HIERU SAERU
kJapaneseOn (kJapaneseOn) GO
kJis0 (kJis0) 4952
kKangXi (kKangXi) 0131.260
kKorean (kKorean) HO
kKPS1 (kKPS1) 3765
kKSC1 (kKSC1) 8378
kMainlandTelegraph (kMainlandTelegraph) 0395
kMandarin (kMandarin)
kMatthews (kMatthews) 2153
kMeyerWempe (kMeyerWempe) 2174b
kMorohashi (kMorohashi) 01613
kPhonetic (kPhonetic) 1461
Radical Stroke Count (Adobe Japan 1-6) (kRSAdobe_Japan1_6) C+4235+15.2.4
Radical Stroke Count (KangXi) (kRSKangXi) 15.4
Radical Stroke Count (Unicode) (kRSUnicode) 15.4
kSBGY (kSBGY) 369.03
Semantic Variant (kSemanticVariant) 沍
kTaiwanTelegraph (kTaiwanTelegraph) 0395
Stroke Number (kTotalStrokes) 6
kXHC1983 (kXHC1983) 0477.120:hù
z Variant (kZVariant) 沍
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) 冱
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) 冱
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)