U+7931 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 grind, sharpen; mill. Its Pīnyīn pronunciation is lóng.

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+7931 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 E7 A4 B1
UTF-16 79 31
UTF-32 00 00 79 31
URL-Quoted %E7%A4%B1
HTML-Escape 礱
Wrong windows-1252 Mojibake 礱
Pīnyīn lóng
IRG_GSource G1-6D43
IRG_HSource HB2-
IRG_JSource J3-7931
IRG_KPSource KP1-610
IRG_KSource K1-5F24
IRG_TSource T2-6B70
BigFive F5E2
CCCII 226655
CNS1986 2-6B70
CNS1992 2-6B70
EACC 226655
GB1 7735
JIS0213 1,89,17
Jis1 4840
KPS1 6104
KSC1 6304
TaiwanTelegraph 4352
Xerox 301:314


Complete Record

Property Value
Age (age) 1.1
Unicode Name (na) CJK UNIFIED IDEOGRAPH-7931
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) 礱
Lowercase (Lower)
Simple Lowercase Mapping (slc) 礱
Lowercase Mapping (lc) 礱
Uppercase (Upper)
Simple Uppercase Mapping (suc) 礱
Uppercase Mapping (uc) 礱
Simple Titlecase Mapping (stc) 礱
Titlecase Mapping (tc) 礱
Case Folding (cf) 礱
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi Control (Bidi_C)
Bidi Mirrored (Bidi_M)
Bidi Paired Bracket (bpb) 礱
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) 礱
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) CT
kIRG_GSource (kIRG_GSource) G1-6D43
kIRG_HSource (kIRG_HSource) HB2-
kIRG_JSource (kIRG_JSource) J3-7931
kIRG_KPSource (kIRG_KPSource) KP1-610
kIRG_KSource (kIRG_KSource) K1-5F24
kIRG_TSource (kIRG_TSource) T2-6B70
kIRGDaeJaweon (kIRGDaeJaweon) 1256.020
kIRGDaiKanwaZiten (kIRGDaiKanwaZiten) 24586
kIRGHanyuDaZidian (kIRGHanyuDaZidian) 42464.130
kIRGKangXi (kIRGKangXi) 0838.350
kBigFive (kBigFive) F5E2
kCangjie (kCangjie) YPMR
kCantonese (kCantonese) lung4
kCCCII (kCCCII) 226655
kCihaiT (kCihaiT) 975.302
kCNS1986 (kCNS1986) 2-6B70
kCNS1992 (kCNS1992) 2-6B70
kDaeJaweon (kDaeJaweon) 1256.020
Unihan Definition (kDefinition) grind, sharpen; mill
kEACC (kEACC) 226655
kFourCornerCode (kFourCornerCode) 0160.1 1161.1
kGB1 (kGB1) 7735
kGSR (kGSR) 1193k
kHangul (kHangul)
kHanYu (kHanYu) 42464.130
kHanyuPinyin (kHanyuPinyin) 42464.130:lóng
kJapaneseKun (kJapaneseKun) TOGU
kJapaneseOn (kJapaneseOn) ROU RU
kJIS0213 (kJIS0213) 1,89,17
kJis1 (kJis1) 4840
kKangXi (kKangXi) 0838.350
kKorean (kKorean) LONG
kKPS1 (kKPS1) 6104
kKSC1 (kKSC1) 6304
kMandarin (kMandarin) lóng
kMatthews (kMatthews) 4269
kMeyerWempe (kMeyerWempe) 1716d
kMorohashi (kMorohashi) 24586
kPhonetic (kPhonetic) 856
Radical Stroke Count (Adobe Japan 1-6) (kRSAdobe_Japan1_6) C+14903+112.5.16 C+14903+212.16.5
Radical Stroke Count (KangXi) (kRSKangXi) 112.16
Radical Stroke Count (Unicode) (kRSUnicode) 112.16
kSBGY (kSBGY) 030.17 342.19
Semantic Variant (kSemanticVariant) 𤮨
Simplified Variant (kSimplifiedVariant) 砻
kTaiwanTelegraph (kTaiwanTelegraph) 4352
Stroke Number (kTotalStrokes) 21
kXerox (kXerox) 301:314
kXHC1983 (kXHC1983) 0732.061:lóng
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) 礱
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) 礱
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)