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Glyph for U+2757
Source: Noto Emoji

U+2757 Heavy Exclamation Mark Symbol

U+2757 was added in Unicode version 5.2 in 2009. It belongs to the block U+2700 to U+27BF Dingbats in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Symbol and is commonly used, that is, in no specific script. The character is also known as obstacles on the road and ARIB STD B24.

The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. If its East Asian Width is “narrow”, U+2757 forms a word with similar characters, which prevents a line break inside it. Otherwise it allows line breaks around it, except in some numeric contexts.

The CLDR project calls this character “red exclamation mark” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: !, exclamation, mark, punctuation, red.

This character is designated as an emoji. It will be rendered as colorful emoji on conforming platforms. To reduce it to a monochrome character, you can combine it with Glyph for U+FE0E Variation Selector-15: ❗︎ See the Emojipedia for more details on this character’s emoji properties.

The Wikipedia has the following information about this codepoint:

The exclamation mark ! (also known as exclamation point in American English) is a punctuation mark usually used after an interjection or exclamation to indicate strong feelings or to show emphasis. The exclamation mark often marks the end of a sentence, for example: "Watch out!". Similarly, a bare exclamation mark (with nothing before or after) is often used in warning signs. The exclamation mark is often used in writing to make a character seem as though they are shouting, excited, or surprised.

Other uses include:

  • In mathematics, it denotes the factorial operation.
  • Several computer languages use ! at the beginning of an expression to denote logical negation. For example,!A means "the logical negation of A", also called "not A". This usage has spread to ordinary language (e.g., "!clue" means no-clue or clueless).
  • Some languages use ǃ, a symbol that looks like an exclamation mark, to denote a click consonant.

Representations

System Representation
10071
UTF-8 E2 9D 97
UTF-16 27 57
UTF-32 00 00 27 57
URL-Quoted %E2%9D%97
HTML hex reference ❗
Wrong windows-1252 Mojibake ❗
alias obstacles on the road
alias ARIB STD B24
Encoding: GB18030 (hex bytes) 81 37 C4 35

Elsewhere

Complete Record

Property Value
Age (age) 5.2 (2009)
Unicode Name (na) HEAVY EXCLAMATION MARK SYMBOL
Unicode 1 Name (na1)
Block (blk) Dingbats
General Category (gc) Other Symbol
Script (sc) Common
Bidirectional Category (bc) Other Neutral
Combining Class (ccc) Not Reordered
Decomposition Type (dt) none
Decomposition Mapping (dm) Glyph for U+2757 Heavy Exclamation Mark Symbol
Lowercase (Lower)
Simple Lowercase Mapping (slc) Glyph for U+2757 Heavy Exclamation Mark Symbol
Lowercase Mapping (lc) Glyph for U+2757 Heavy Exclamation Mark Symbol
Uppercase (Upper)
Simple Uppercase Mapping (suc) Glyph for U+2757 Heavy Exclamation Mark Symbol
Uppercase Mapping (uc) Glyph for U+2757 Heavy Exclamation Mark Symbol
Simple Titlecase Mapping (stc) Glyph for U+2757 Heavy Exclamation Mark Symbol
Titlecase Mapping (tc) Glyph for U+2757 Heavy Exclamation Mark Symbol
Case Folding (cf) Glyph for U+2757 Heavy Exclamation Mark Symbol
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+2757 Heavy Exclamation Mark Symbol
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+2757 Heavy Exclamation Mark Symbol
NFKC Quick Check (NFKC_QC) Yes
NFKC_SCF (NFKC_SCF) Glyph for U+2757 Heavy Exclamation Mark Symbol
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
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+2757 Heavy Exclamation Mark Symbol
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) Ambiguous (Alphabetic or Ideographic)
Numeric Type (nt) none
Numeric Value (nv) not a number
Simple Case Folding (scf) Glyph for U+2757 Heavy Exclamation Mark Symbol
Script Extension (scx)
Vertical Orientation (vo) U