Source: Noto Sans

U+1DFC Combining Double Inverted Breve Below

U+1DFC was added in Unicode version 6.0 in 2010. It belongs to the block U+1DC0 to U+1DFF Combining Diacritical Marks Supplement 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 glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Nonspacing Mark. When changing direction it is not mirrored. U+1DFC prohibits a line break around it.

The Wikipedia has the following information about this codepoint:

The tie is a symbol in the shape of an arc similar to a large breve, used in Greek, phonetic alphabets, and Z notation. It can be used between two characters with spacing as punctuation, non-spacing as a diacritic, or (underneath) as a proofreading mark. It can be above or below, and reversed. Its forms are called tie, double breve, enotikon or papyrological hyphen, ligature tie, and undertie.

Representations

System	Representation
Nº	7676
UTF-8	E1 B7 BC
UTF-16	1D FC
UTF-32	00 00 1D FC
URL-Quoted	%E1%B7%BC
HTML hex reference	᷼
Wrong windows-1252 Mojibake	â—Œá·¼
Encoding: GB18030 (hex bytes)	81 35 EE 30

Elsewhere

Complete Record

Property	Value
Age (age)	6.0 (2010)
Unicode Name (na)	COMBINING DOUBLE INVERTED BREVE BELOW
Unicode 1 Name (na1)	—
Block (blk)	Combining Diacritical Marks Supplement
General Category (gc)	Nonspacing Mark
Script (sc)	Inherited
Bidirectional Category (bc)	Nonspacing Mark
Combining Class (ccc)	Double Below
Decomposition Type (dt)	none
Decomposition Mapping (dm)	Combining Double Inverted Breve Below
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Combining Double Inverted Breve Below
Lowercase Mapping (lc)	Combining Double Inverted Breve Below
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Combining Double Inverted Breve Below
Uppercase Mapping (uc)	Combining Double Inverted Breve Below
Simple Titlecase Mapping (stc)	Combining Double Inverted Breve Below
Titlecase Mapping (tc)	Combining Double Inverted Breve Below
Case Folding (cf)	Combining Double Inverted Breve Below
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)	Combining Double Inverted Breve Below
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)	Combining Double Inverted Breve Below
NFKC Quick Check (NFKC_QC)	Yes
NFKC_SCF (NFKC_SCF)	Combining Double Inverted Breve Below
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)	Combining Double Inverted Breve Below
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	neutral
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Transparent
Line Break (lb)	Non-breaking (“Glue”)
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Combining Double Inverted Breve Below
Script Extension (scx)
Vertical Orientation (vo)	R