U+5509 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 alas, exclamation of surprise or pain. Its Pīnyīn pronunciation is āi.

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+5509 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 94 89
UTF-16 55 09
UTF-32 00 00 55 09
URL-Quoted %E5%94%89
HTML-Escape 唉
Wrong windows-1252 Mojibake 唉
Pīnyīn āi
IRG_GSource G0-3026
IRG_HSource HB1-
IRG_JSource J4-237E
IRG_KPSource KP1-39E
IRG_KSource K1-6655
IRG_TSource T1-545F
IRG_VSource V0-315
BigFive ADFC
CCCII 213642
CNS1986 1-545F
CNS1992 1-545F
EACC 213642
GB0 1606
GB1 1606
JIS0213 2,03,94
Jis1 2141
KPS1 39E2
KSC1 7053
MainlandTelegraph 0780
TaiwanTelegraph 0780
Xerox 247:062


Complete Record

Property Value
Age (age) 1.1
Unicode Name (na) CJK UNIFIED IDEOGRAPH-5509
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) 唉
Lowercase (Lower)
Simple Lowercase Mapping (slc) 唉
Lowercase Mapping (lc) 唉
Uppercase (Upper)
Simple Uppercase Mapping (suc) 唉
Uppercase Mapping (uc) 唉
Simple Titlecase Mapping (stc) 唉
Titlecase Mapping (tc) 唉
Case Folding (cf) 唉
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi Control (Bidi_C)
Bidi Mirrored (Bidi_M)
Bidi Paired Bracket (bpb) 唉
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) 唉
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) G0-3026
kIRG_HSource (kIRG_HSource) HB1-
kIRG_JSource (kIRG_JSource) J4-237E
kIRG_KPSource (kIRG_KPSource) KP1-39E
kIRG_KSource (kIRG_KSource) K1-6655
kIRG_TSource (kIRG_TSource) T1-545F
kIRG_VSource (kIRG_VSource) V0-315
kIRGDaeJaweon (kIRGDaeJaweon) 0411.120
kIRGDaiKanwaZiten (kIRGDaiKanwaZiten) 03701
kIRGHanyuDaZidian (kIRGHanyuDaZidian) 10635.060
kIRGKangXi (kIRGKangXi) 0192.040
kBigFive (kBigFive) ADFC
kCangjie (kCangjie) RIOK
kCantonese (kCantonese) aai1 oi1
kCCCII (kCCCII) 213642
kCihaiT (kCihaiT) 276.405
kCNS1986 (kCNS1986) 1-545F
kCNS1992 (kCNS1992) 1-545F
kCowles (kCowles) 32
kDaeJaweon (kDaeJaweon) 0411.120
Unihan Definition (kDefinition) alas, exclamation of surprise or pain
kEACC (kEACC) 213642
kFenn (kFenn) 477F
kFennIndex (kFennIndex) 1.08 2.04
kFourCornerCode (kFourCornerCode) 6303.4
kFrequency (kFrequency) 3
kGB0 (kGB0) 1606
kGB1 (kGB1) 1606
kGradeLevel (kGradeLevel) 4
kGSR (kGSR) 0938a
kHangul (kHangul)
kHanYu (kHanYu) 10635.060
kHanyuPinyin (kHanyuPinyin) 10635.060:āi,ǎi,ài
kHKGlyph (kHKGlyph) 0592
kJapaneseKun (kJapaneseKun) AA AAOO IYAIYAKOTAERU
kJapaneseOn (kJapaneseOn) KAI KI AI I
kJIS0213 (kJIS0213) 2,03,94
kJis1 (kJis1) 2141
kKangXi (kKangXi) 0192.040
kKarlgren (kKarlgren) 183
kKorean (kKorean) AY
kKPS1 (kKPS1) 39E2
kKSC1 (kKSC1) 7053
kMainlandTelegraph (kMainlandTelegraph) 0780
kMandarin (kMandarin) āi
kMatthews (kMatthews) 4
kMeyerWempe (kMeyerWempe) 25 2143
kMorohashi (kMorohashi) 03701
kPhonetic (kPhonetic) 1549A
Radical Stroke Count (Adobe Japan 1-6) (kRSAdobe_Japan1_6) C+17366+30.3.7
Radical Stroke Count (KangXi) (kRSKangXi) 30.7
Radical Stroke Count (Unicode) (kRSUnicode) 30.7
kSBGY (kSBGY) 099.07 271.36
Semantic Variant (kSemanticVariant) 欸
Specialized Semantic Variant (kSpecializedSemanticVariant) 欸
kTaiwanTelegraph (kTaiwanTelegraph) 0780
Stroke Number (kTotalStrokes) 10
kVietnamese (kVietnamese) hãy
kXerox (kXerox) 247:062
kXHC1983 (kXHC1983) 0003.050:āi 0004.100:ài
z Variant (kZVariant) 誒
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) 唉
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) 唉
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)