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