Home U+0300 to U+036F Combining Diacritical Marks
Glyph for U+0333
Source: Noto Sans

U+0333 Combining Double Low Line

U+0333 was added in Unicode version 1.1 in 1993. It belongs to the block U+0300 to U+036F Combining Diacritical Marks in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Nonspacing Mark and inherits its script property from the preceding character. The character is also known as double underline and double underscore.

The glyph is not a composition. Its width in East Asian texts is determined by its context. It can be displayed wide or narrow. In bidirectional text it acts as Nonspacing Mark. When changing direction it is not mirrored. U+0333 prohibits a line break before it. The glyph can be confused with one other glyph.

Representations

System Representation
Nº 819
UTF-8 CC B3
UTF-16 03 33
UTF-32 00 00 03 33
URL-Quoted %CC%B3
HTML hex reference ̳
Wrong windows-1252 Mojibake ◌̳
alias double underline
alias double underscore
Encoding: GB18030 (hex bytes) 81 30 C1 37
AGL: Latin-5 uni0333
Adobe Glyph List dbllowlinecmb

Related Characters

Confusables

Elsewhere

Complete Record

Property Value
Age (age) 1.1 (1993)
Unicode Name (na) COMBINING DOUBLE LOW LINE
Unicode 1 Name (na1) NON-SPACING DOUBLE UNDERSCORE
Block (blk) Combining Diacritical Marks
General Category (gc) Nonspacing Mark
Script (sc) Inherited
Bidirectional Category (bc) Nonspacing Mark
Combining Class (ccc) Below
Decomposition Type (dt) none
Decomposition Mapping (dm) Glyph for U+0333 Combining Double Low Line
Lowercase (Lower) ✘
Simple Lowercase Mapping (slc) Glyph for U+0333 Combining Double Low Line
Lowercase Mapping (lc) Glyph for U+0333 Combining Double Low Line
Uppercase (Upper) ✘
Simple Uppercase Mapping (suc) Glyph for U+0333 Combining Double Low Line
Uppercase Mapping (uc) Glyph for U+0333 Combining Double Low Line
Simple Titlecase Mapping (stc) Glyph for U+0333 Combining Double Low Line
Titlecase Mapping (tc) Glyph for U+0333 Combining Double Low Line
Case Folding (cf) Glyph for U+0333 Combining Double Low Line
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+0333 Combining Double Low Line
Grapheme Cluster Break (GCB) Extend
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) Extend
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+0333 Combining Double Low Line
NFKC Quick Check (NFKC_QC) Yes
NFKC_SCF (NFKC_SCF) Glyph for U+0333 Combining Double Low Line
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) Extend
Soft Dotted (SD) ✘
Sentence Terminal (STerm) ✘
Terminal Punctuation (Term) ✘
Unified Ideograph (UIdeo) ✘
Variation Selector (VS) ✘
Word Break (WB) Extend
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+0333 Combining Double Low Line
Bidi Paired Bracket Type (bpt) None
East Asian Width (ea) ambiguous
Hangul Syllable Type (hst) Not Applicable
ISO 10646 Comment (isc) —
Joining Group (jg) No_Joining_Group
Joining Type (jt) Transparent
Line Break (lb) Combining Mark
Numeric Type (nt) none
Numeric Value (nv) not a number
Simple Case Folding (scf) Glyph for U+0333 Combining Double Low Line
Script Extension (scx)
Vertical Orientation (vo) R