Home U+4E00 to U+9FFF CJK Unified Ideographs
Glyph for U+7A7A
Source: Noto CJK

U+7A7A CJK Unified Ideo­graph-​7A7A

U+7A7A was added in Unicode version 1.1 in 1993. It belongs to the block U+4E00 to U+9FFF CJK Unified Ideographs in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Letter and is mainly used in the Han script. The Unihan Database defines it as empty, hollow, bare, deserted. Its Pīnyīn pronunciation is kōng.

The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+7A7A offers a line break opportunity at its position, except in some numeric contexts.

Representations

System Representation
Nº 31354
UTF-8 E7 A9 BA
UTF-16 7A 7A
UTF-32 00 00 7A 7A
URL-Quoted %E7%A9%BA
HTML hex reference 空
Wrong windows-1252 Mojibake 空
Encoding: EUC-KR (hex bytes) CD F6
Encoding: JIS0208 (hex bytes) B6 F5
Pīnyīn kōng

Related Characters

Elsewhere

Complete Record

Property Value
Age (age) 1.1 (1993)
Unicode Name (na) CJK UNIFIED IDEOGRAPH-7A7A
Unicode 1 Name (na1) —
Block (blk) CJK Unified Ideographs
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) Glyph for U+7A7A CJK Unified Ideograph-7A7A
Lowercase (Lower) ✘
Simple Lowercase Mapping (slc) Glyph for U+7A7A CJK Unified Ideograph-7A7A
Lowercase Mapping (lc) Glyph for U+7A7A CJK Unified Ideograph-7A7A
Uppercase (Upper) ✘
Simple Uppercase Mapping (suc) Glyph for U+7A7A CJK Unified Ideograph-7A7A
Uppercase Mapping (uc) Glyph for U+7A7A CJK Unified Ideograph-7A7A
Simple Titlecase Mapping (stc) Glyph for U+7A7A CJK Unified Ideograph-7A7A
Titlecase Mapping (tc) Glyph for U+7A7A CJK Unified Ideograph-7A7A
Case Folding (cf) Glyph for U+7A7A CJK Unified Ideograph-7A7A
ASCII Hex Digit (AHex) ✘
Alphabetic (Alpha) ✔
Bidi Control (Bidi_C) ✘
Bidi Mirrored (Bidi_M) ✘
Composition Exclusion (CE) ✘
Case Ignorable (CI) ✘
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) ✘
Cased (Cased) ✘
Full Composition Exclusion (Comp_Ex) ✘
Default Ignorable Code Point (DI) ✘
Dash (Dash) ✘
Deprecated (Dep) ✘
Diacritic (Dia) ✘
Emoji Modifier Base (EBase) ✘
Emoji Component (EComp) ✘
Emoji Modifier (EMod) ✘
Emoji Presentation (EPres) ✘
Emoji (Emoji) ✘
Extender (Ext) ✘
Extended Pictographic (ExtPict) ✘
FC NFKC Closure (FC_NFKC) Glyph for U+7A7A CJK Unified Ideograph-7A7A
Grapheme Cluster Break (GCB) Any
Grapheme Base (Gr_Base) ✔
Grapheme Extend (Gr_Ext) ✘
Grapheme Link (Gr_Link) ✘
Hex Digit (Hex) ✘
Hyphen (Hyphen) ✘
ID Continue (IDC) ✔
ID Start (IDS) ✔
IDS Binary Operator (IDSB) ✘
IDS Trinary Operator and (IDST) ✘
IDSU (IDSU) 0
ID_Compat_Math_Continue (ID_Compat_Math_Continue) 0
ID_Compat_Math_Start (ID_Compat_Math_Start) 0
Ideographic (Ideo) ✔
InCB (InCB) None
Indic Mantra Category (InMC) —
Indic Positional Category (InPC) NA
Indic Syllabic Category (InSC) Other
Jamo Short Name (JSN) —
Join Control (Join_C) ✘
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) Glyph for U+7A7A CJK Unified Ideograph-7A7A
NFKC Quick Check (NFKC_QC) Yes
NFKC_SCF (NFKC_SCF) Glyph for U+7A7A CJK Unified Ideograph-7A7A
NFKD Quick Check (NFKD_QC) Yes
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) ✘
Prepended Concatenation Mark (PCM) ✘
Pattern Syntax (Pat_Syn) ✘
Pattern White Space (Pat_WS) ✘
Quotation Mark (QMark) ✘
Regional Indicator (RI) ✘
Radical (Radical) ✘
Sentence Break (SB) Other Letter
Soft Dotted (SD) ✘
Sentence Terminal (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) ✘
Bidi Paired Bracket (bpb) Glyph for U+7A7A CJK Unified Ideograph-7A7A
Bidi Paired Bracket Type (bpt) None
East Asian Width (ea) wide
Hangul Syllable Type (hst) Not Applicable
ISO 10646 Comment (isc) —
Joining Group (jg) No_Joining_Group
Joining Type (jt) Non Joining
Line Break (lb) Ideographic
Numeric Type (nt) none
Numeric Value (nv) not a number
Simple Case Folding (scf) Glyph for U+7A7A CJK Unified Ideograph-7A7A
Script Extension (scx)
Vertical Orientation (vo) U
Big Five Mapping (kBigFive) AAC5
CCCII Mapping (kCCCII) 214F50
CNS 11643-1986 Mapping (kCNS1986) 1-4F28
CNS 11643-1992 Mapping (kCNS1992) 1-4F28
Cangjie Input Code (kCangjie) JCM
kCantonese (kCantonese) hung1
kCihaiT (kCihaiT) 997.601
kCowles (kCowles) 1226 1234
kDaeJaweon (kDaeJaweon) 1289.080
Unihan Definition (kDefinition) empty, hollow, bare, deserted
kEACC (kEACC) 214F50
kFenn (kFenn) 10B
kFennIndex (kFennIndex) 279.05 280.02
kFourCornerCode (kFourCornerCode) 3010.1
kFrequency (kFrequency) 2
kGB0 (kGB0) 3153
kGB1 (kGB1) 3153
kGSR (kGSR) 1172h
kGradeLevel (kGradeLevel) 1
kHKGlyph (kHKGlyph) 2935
kHanYu (kHanYu) 42719.080
kHangul (kHangul) 공:0E
kHanyuPinlu (kHanyuPinlu) kōng(857) kòng(69)
kHanyuPinyin (kHanyuPinyin) 42719.080:kōng,kǒng,kòng
kIICore (kIICore) AGTJHKMP
kIRGDaeJaweon (kIRGDaeJaweon) 1289.080
kIRGHanyuDaZidian (kIRGHanyuDaZidian) 42719.080
kIRGKangXi (kIRGKangXi) 0863.010
kIRG_GSource (kIRG_GSource) G0-3F55
kIRG_HSource (kIRG_HSource) HB1-AAC5
kIRG_JSource (kIRG_JSource) J0-3675
kIRG_KPSource (kIRG_KPSource) KP0-D0C2
kIRG_KSource (kIRG_KSource) K0-4D76
kIRG_TSource (kIRG_TSource) T1-4F28
kIRG_VSource (kIRG_VSource) V1-614C
kJapanese (kJapanese) クウ コウ ク そら あく あける から むなしい すく
kJapaneseKun (kJapaneseKun) KARA AKU SORA
kJapaneseOn (kJapaneseOn) KUU
kJis0 (kJis0) 2285
kJoyoKanji (kJoyoKanji) 2010
kKangXi (kKangXi) 0863.010
kKarlgren (kKarlgren) 469
kKorean (kKorean) KONG
kKoreanEducationHanja (kKoreanEducationHanja) 2007
kLau (kLau) 1252 1253
kMainlandTelegraph (kMainlandTelegraph) 4500
kMandarin (kMandarin) kōng
kMatthews (kMatthews) 3722
kMeyerWempe (kMeyerWempe) 823 830
kMojiJoho (kMojiJoho) MJ019210 MJ019210:E0102 MJ019211:E0103
kMorohashi (kMorohashi) 25415 25415:E0102
kNelson (kNelson) 3317
kPhonetic (kPhonetic) 525 684
Radical Stroke Count (Adobe Japan 1-6) (kRSAdobe_Japan1_6) C+1773+48.3.5 C+1773+116.5.3 V+13735+48.3.5 V+13735+116.5.3
Radical Stroke Count (Unicode) (kRSUnicode) 116.3
kSBGY (kSBGY) 027.25 342.34
kSMSZD2003Index (kSMSZD2003Index) 490.02 190.13
kSMSZD2003Readings (kSMSZD2003Readings) kōng粵hung1 kòng粵hung1
kTGH (kTGH) 2013:1282
kTGHZ2013 (kTGHZ2013) 197.140:kōng 198.060:kòng
Taiwanese Telegraph Code (kTaiwanTelegraph) 4500
kTang (kTang) *kung kùng
Stroke Number (kTotalStrokes) 8
UnihanCore2020 Set (kUnihanCore2020) GHJKMPT
Quốc ngữ Pronunciation (kVietnamese) không
kXHC1983 (kXHC1983) 0645.110:kōng 0648.080:kòng
Xerox Code (kXerox) 242:176