Home U+3400 to U+4DBF CJK Unified Ideographs Extension A
Glyph for U+40A1
Source: Noto CJK

U+40A1 CJK Unified Ideo­graph-​40A1

U+40A1 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 (non-classical form 砥) a whetstone, smooth, to polish. Its Pīnyīn pronunciation is dǐ.

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+40A1 offers a line break opportunity at its position, except in some numeric contexts.

Representations

System Representation
Nº 16545
UTF-8 E4 82 A1
UTF-16 40 A1
UTF-32 00 00 40 A1
URL-Quoted %E4%82%A1
HTML hex reference 䂡
Wrong windows-1252 Mojibake ä‚¡
Encoding: GB18030 (hex bytes) 82 32 B6 37
Pīnyīn dǐ

Elsewhere

Complete Record

Property Value
Age (age) 3.0 (1999)
Unicode Name (na) CJK UNIFIED IDEOGRAPH-40A1
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+40A1 CJK Unified Ideograph-40A1
Lowercase (Lower) ✘
Simple Lowercase Mapping (slc) Glyph for U+40A1 CJK Unified Ideograph-40A1
Lowercase Mapping (lc) Glyph for U+40A1 CJK Unified Ideograph-40A1
Uppercase (Upper) ✘
Simple Uppercase Mapping (suc) Glyph for U+40A1 CJK Unified Ideograph-40A1
Uppercase Mapping (uc) Glyph for U+40A1 CJK Unified Ideograph-40A1
Simple Titlecase Mapping (stc) Glyph for U+40A1 CJK Unified Ideograph-40A1
Titlecase Mapping (tc) Glyph for U+40A1 CJK Unified Ideograph-40A1
Case Folding (cf) Glyph for U+40A1 CJK Unified Ideograph-40A1
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+40A1 CJK Unified Ideograph-40A1
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+40A1 CJK Unified Ideograph-40A1
NFKC Quick Check (NFKC_QC) Yes
NFKC_SCF (NFKC_SCF) Glyph for U+40A1 CJK Unified Ideograph-40A1
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+40A1 CJK Unified Ideograph-40A1
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+40A1 CJK Unified Ideograph-40A1
Script Extension (scx)
Vertical Orientation (vo) U
Cangjie Input Code (kCangjie) MROM
kCantonese (kCantonese) dai2
Unihan Definition (kDefinition) (non-classical form 砥) a whetstone, smooth, to polish
kHanYu (kHanYu) 42424.020
kIRGHanyuDaZidian (kIRGHanyuDaZidian) 42424.020
kIRGKangXi (kIRGKangXi) 0828.380
kIRG_GSource (kIRG_GSource) GKX-0828.38
kIRG_JSource (kIRG_JSource) JMJ-002947
kIRG_TSource (kIRG_TSource) T4-2E62
kJapanese (kJapanese) シ
kKangXi (kKangXi) 0828.380
kMandarin (kMandarin) dǐ
kMojiJoho (kMojiJoho) MJ002947
kMorohashi (kMorohashi) 24094
kPhonetic (kPhonetic) 1506*
Radical Stroke Count (Unicode) (kRSUnicode) 112.5
Stroke Number (kTotalStrokes) 10