U+8981 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 necessary, essential; necessity. Its Pīnyīn pronunciation is y.

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+8981 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 E8 A6 81
UTF-16 89 81
UTF-32 00 00 89 81
URL-Quoted %E8%A6%81
HTML-Escape 要
Wrong windows-1252 Mojibake 要
Encoding: EUC-KR (hex bytes) E9 A9
Encoding: JIS0208 (hex bytes) CD D7
Pīnyīn y
IRG_GSource G0-522A
IRG_HSource HB1-
IRG_JSource J0-4D57
IRG_KSource K0-6929
IRG_TSource T1-5351
IRG_VSource V1-666
BigFive AD6E
CCCII 215825
CNS1986 1-5351
CNS1992 1-5351
EACC 215825
GB0 5010
GB1 5010
Jis0 4555
KSC0 7309
MainlandTelegraph 6008
TaiwanTelegraph 6008
Xerox 241:066


Complete Record

Property Value
Age (age) 1.1
Unicode Name (na) CJK UNIFIED IDEOGRAPH-8981
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) 要
Lowercase (Lower)
Simple Lowercase Mapping (slc) 要
Lowercase Mapping (lc) 要
Uppercase (Upper)
Simple Uppercase Mapping (suc) 要
Uppercase Mapping (uc) 要
Simple Titlecase Mapping (stc) 要
Titlecase Mapping (tc) 要
Case Folding (cf) 要
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi Control (Bidi_C)
Bidi Mirrored (Bidi_M)
Bidi Paired Bracket (bpb) 要
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) 要
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) AGT
kIRG_GSource (kIRG_GSource) G0-522A
kIRG_HSource (kIRG_HSource) HB1-
kIRG_JSource (kIRG_JSource) J0-4D57
kIRG_KPSource (kIRG_KPSource) KP0-FAB
kIRG_KSource (kIRG_KSource) K0-6929
kIRG_TSource (kIRG_TSource) T1-5351
kIRG_VSource (kIRG_VSource) V1-666
kIRGDaeJaweon (kIRGDaeJaweon) 1597.040
kIRGDaiKanwaZiten (kIRGDaiKanwaZiten) 34768'
kIRGHanyuDaZidian (kIRGHanyuDaZidian) 42805.080
kIRGKangXi (kIRGKangXi) 1128.160
kBigFive (kBigFive) AD6E
kCangjie (kCangjie) MWV
kCantonese (kCantonese) jiu1 jiu3
kCCCII (kCCCII) 215825
kCihaiT (kCihaiT) 1226.201
kCNS1986 (kCNS1986) 1-5351
kCNS1992 (kCNS1992) 1-5351
kCowles (kCowles) 1385 1388
kDaeJaweon (kDaeJaweon) 1597.040
Unihan Definition (kDefinition) necessary, essential; necessity
kEACC (kEACC) 215825
kFenn (kFenn) 776A
kFennIndex (kFennIndex) 616.04 618.08 619.01
kFourCornerCode (kFourCornerCode) 1040.4
kFrequency (kFrequency) 1
kGB0 (kGB0) 5010
kGB1 (kGB1) 5010
kGradeLevel (kGradeLevel) 1
kGSR (kGSR) 1142a
kHangul (kHangul)
kHanYu (kHanYu) 42805.080
kHanyuPinlu (kHanyuPinlu) yào(8645) yāo(456)
kHanyuPinyin (kHanyuPinyin) 42805.080:yāo,yào,yǎo
kHKGlyph (kHKGlyph) 3733
kJapaneseKun (kJapaneseKun) IRU MOTOMERU KANAME
kJapaneseOn (kJapaneseOn) YOU
kJis0 (kJis0) 4555
kKangXi (kKangXi) 1128.160
kKarlgren (kKarlgren) 219
kKorean (kKorean) YO
kKPS0 (kKPS0) FAB4
kKSC0 (kKSC0) 7309
kLau (kLau) 3508 3509
kMainlandTelegraph (kMainlandTelegraph) 6008
kMandarin (kMandarin) yào
kMatthews (kMatthews) 7300
kMeyerWempe (kMeyerWempe) 913 915
kMorohashi (kMorohashi) 34768'
kNelson (kNelson) 4274
kPhonetic (kPhonetic) 1596
Radical Stroke Count (Adobe Japan 1-6) (kRSAdobe_Japan1_6) C+3905+38.3.6 C+3905+146.6.3 V+14079+38.3.6 V+14079+146.6.3
Radical Stroke Count (KangXi) (kRSKangXi) 146.3
Radical Stroke Count (Unicode) (kRSUnicode) 146.3
kSBGY (kSBGY) 150.15 413.57
kTaiwanTelegraph (kTaiwanTelegraph) 6008
kTang (kTang) *qiɛ̀u
Stroke Number (kTotalStrokes) 9
kVietnamese (kVietnamese) yếu
kXerox (kXerox) 241:066
kXHC1983 (kXHC1983) 1339.040:yāo 1343.020:yào
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) 要
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) 要
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)