U+034F was added to Unicode in version 3.2 (2002). It belongs to the block Combining Diacritical Marks in the Basic Multilingual Plane.

This character is a Nonspacing Mark and inherits its script property from the preceding character.

The glyph is not a composition. It has a Ambiguous East Asian Width. In bidirectional context it acts as Nonspacing Mark and is not mirrored. In text U+034F behaves as Glue regarding line breaks. It has type Extend for sentence and Extend for word breaks. The Grapheme Cluster Break is Extend.

The Wikipedia has the following information about this codepoint:

The combining grapheme joiner (CGJ), U+034F ͏ combining grapheme joiner (HTML ͏) is a Unicode character that has no visible glyph and is "default ignorable" by applications. Its name is a misnomer and does not describe its function; the character does not join graphemes. Its purpose is to separate characters that should not be considered digraphs.

For example, in a Hungarian language context, adjoining characters c and s would normally be considered equivalent to the cs digraph. If they are separated by the CGJ, they will be considered as two separate graphemes.

It is also needed for complex scripts. For example, in most cases the Hebrew cantillation accent Metheg is supposed to appear to the left of the vowel point and by default most display systems will render it like this even if it is typed before the vowel. But in some words in Biblical Hebrew the Metheg appears to the right of the vowel, and to tell the display engine to render it properly on the right, CGJ must be typed between the Metheg and the vowel. Compare:

(The examples in the table may not be supported if you don't have a font that properly supports Hebrew cantillation display. Ezra SIL SR is recommended.)

In the case of several consecutive combining diacritics, an intervening CGJ indicates that they should not be subject to canonical reordering.

Compare to this the "zero-width non-joiner" (as it were a space mark of width zero) at U+200C in the General Punctuation range.


System Representation
UTF-16 03 4F
UTF-32 00 00 03 4F
URL-Quoted %CD%8F
HTML-Escape ͏
Wrong windows-1252 Mojibake ͏
abbreviation CGJ


Complete Record

Property Value
Age (age) 3.2
Unicode 1 Name (na1)
Block (blk) Diacriticals
General Category (gc) Nonspacing Mark
Script (sc) Inherited
Bidirectional Category (bc) Nonspacing Mark
Combining Class (ccc) Not Reordered
Decomposition Type (dt) None
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) Ambiguous
Extender (Ext)
FC NFKC Closure (FC_NFKC) ͏
Grapheme Cluster Break (GCB) Extend
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) Transparent
Line Break (lb) Glue
Logical Order Exception (LOE)
Math (Math)
Noncharacter Code Point (NChar)
NFC Quick Check (NFC_QC) Yes
NFD Quick Check (NFD_QC) Yes
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) Extend
Simple Case Folding (scf) ͏
Script Extension (scx) Inherited
Soft Dotted (SD)
STerm (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)