Home U+3400 to U+4DBF CJK Unified Ideographs Extension A
Glyph for U+4021
Source: Noto CJK

U+4021 CJK Unified Ideo­graph-​4021

U+4021 was added in Unicode version 3.0 in 1999. It belongs to the block U+3400 to U+4DBF CJK Unified Ideographs Extension A 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 (same as 覘) to spy on; to see; to observe; to inspect, to cast the eyes down, the insight of the debauchee, to move the eyes; to look around. Its Pīnyīn pronunciation is chàn.

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+4021 offers a line break opportunity at its position, except in some numeric contexts.

Representations

System Representation
Nº 16417
UTF-8 E4 80 A1
UTF-16 40 21
UTF-32 00 00 40 21
URL-Quoted %E4%80%A1
HTML hex reference 䀡
Wrong windows-1252 Mojibake 䀡
Encoding: GB18030 (hex bytes) 82 32 AA 30
Pīnyīn chàn

Elsewhere

Complete Record

Property Value
Age (age) 3.0 (1999)
Unicode Name (na) CJK UNIFIED IDEOGRAPH-4021
Unicode 1 Name (na1) —
Block (blk) CJK Unified Ideographs Extension A
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+4021 CJK Unified Ideograph-4021
Lowercase (Lower) ✘
Simple Lowercase Mapping (slc) Glyph for U+4021 CJK Unified Ideograph-4021
Lowercase Mapping (lc) Glyph for U+4021 CJK Unified Ideograph-4021
Uppercase (Upper) ✘
Simple Uppercase Mapping (suc) Glyph for U+4021 CJK Unified Ideograph-4021
Uppercase Mapping (uc) Glyph for U+4021 CJK Unified Ideograph-4021
Simple Titlecase Mapping (stc) Glyph for U+4021 CJK Unified Ideograph-4021
Titlecase Mapping (tc) Glyph for U+4021 CJK Unified Ideograph-4021
Case Folding (cf) Glyph for U+4021 CJK Unified Ideograph-4021
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+4021 CJK Unified Ideograph-4021
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) ✘
Modifier Combining Mark (MCM) ✘
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+4021 CJK Unified Ideograph-4021
NFKC Quick Check (NFKC_QC) Yes
NFKC_SCF (NFKC_SCF) Glyph for U+4021 CJK Unified Ideograph-4021
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+4021 CJK Unified Ideograph-4021
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+4021 CJK Unified Ideograph-4021
Script Extension (scx)
Vertical Orientation (vo) U
Cangjie Input Code (kCangjie) BUYR
kCantonese (kCantonese) zim1
Unihan Definition (kDefinition) (same as 覘) to spy on; to see; to observe; to inspect, to cast the eyes down, the insight of the debauchee, to move the eyes; to look around
kFanqie (kFanqie) 丁兼 丑豔 都念
kHanYu (kHanYu) 42479.120
kHanyuPinyin (kHanyuPinyin) 42479.120:chàn,diān,tàn
kIRGHanyuDaZidian (kIRGHanyuDaZidian) 42479.120
kIRGKangXi (kIRGKangXi) 0804.170
kIRG_GSource (kIRG_GSource) G5-5923
kIRG_JSource (kIRG_JSource) JMJ-002816
kIRG_KPSource (kIRG_KPSource) KP1-5DE1
kIRG_KSource (kIRG_KSource) K3-2C53
kIRG_TSource (kIRG_TSource) T3-3266
kIRG_VSource (kIRG_VSource) V0-3E53
kJapanese (kJapanese) テン セン タン
kKangXi (kKangXi) 0804.170
kMandarin (kMandarin) chàn
kMojiJoho (kMojiJoho) MJ002816
kMorohashi (kMorohashi) 23234
Radical Stroke Count (Unicode) (kRSUnicode) 109.5
kSBGY (kSBGY) 228.44 444.10 444.41
Semantic Variant (kSemanticVariant) Glyph for U+4993 U+4993 Glyph for U+8998 U+8998
Stroke Number (kTotalStrokes) 10
Quốc ngữ Pronunciation (kVietnamese) xem