U+203C DOUBLE EXCLAMATION MARK

U+203C was added to Unicode in version 1.1 (1993). It belongs to the block General Punctuation in the Basic Multilingual Plane.

This character is a Other Punctuation and is commonly used, that is, in no specific script.

The glyph is a Compat composition of the glyphs ! !. It has a Neutral East Asian Width. In bidirectional context it acts as Other Neutral and is not mirrored. The glyph can, under circumstances, be confused with 1 other glyphs. In text U+203C behaves as Nonstarter regarding line breaks. It has type STerm for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

(a double exclamation mark, Unicode character U+203C) may refer to:

  • A brilliant move in chess notation
  • The double factorial operator in mathematics
  • A "convert to Boolean" construction in some computer languages
    • This is through a computer type of double negation, where its Boolean value is negated, then negated again, converting the value to either true or false
  • An operator for fetching list elements in the programming language Haskell
  • A retroflex click, a family of click consonants found only in Juu languages of southern Africa and in the Damin ritual jargon of Australia

The ‼ character can be typed on Microsoft Windows operating systems by using the key combination ALT+19, or in simple form, holding the ALT key and typing the numbers 1 and 9 on the local number pad.

Representations

System Representation
8252
UTF-8 E2 80 BC
UTF-16 20 3C
UTF-32 00 00 20 3C
URL-Quoted %E2%80%BC
HTML-Escape ‼
Wrong windows-1252 Mojibake ‼
digraph !*2

Related Characters

Confusables

  • ! !

Elsewhere

Complete Record

Property Value
Age (age) 1.1
Unicode Name (na) DOUBLE EXCLAMATION MARK
Unicode 1 Name (na1)
Block (blk) Punctuation
General Category (gc) Other Punctuation
Script (sc) Common
Bidirectional Category (bc) Other Neutral
Combining Class (ccc) Not Reordered
Decomposition Type (dt) Compat
Decomposition Mapping (dm) ! !
Lowercase (Lower)
Simple Lowercase Mapping (slc) ‼
Lowercase Mapping (lc) ‼
Uppercase (Upper)
Simple Uppercase Mapping (suc) ‼
Uppercase Mapping (uc) ‼
Simple Titlecase Mapping (stc) ‼
Titlecase Mapping (tc) ‼
Case Folding (cf) ‼
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi Control (Bidi_C)
Bidi Mirrored (Bidi_M)
Bidi Paired Bracket (bpb) ‼
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) Neutral
Extender (Ext)
FC NFKC Closure (FC_NFKC) ‼
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)
InMC (InMC)
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
Line Break (lb) Nonstarter
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) ! !
NFKC Quick Check (NFKC_QC) No
NFKD Quick Check (NFKD_QC) No
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) STerm
Simple Case Folding (scf) ‼
Script Extension (scx) Common
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)