Source: Noto Sans

U+0319 COMBINING RIGHT TACK BELOW

U+0319 was added to Unicode in version 1.1 (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 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+0319 behaves as Combining Mark 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:

In phonetics, advanced tongue root (ATR) and retracted tongue root (RTR) are contrasting states of the root of the tongue during the pronunciation of vowels in some languages, especially in Western and Eastern Africa, but also in Kazakh and Mongolian. ATR vs RTR used to be suggested to be the basis for the distinction between tense and lax vowels in European languages such as German, but that no longer seems tenable.

Representations

System	Representation
Nº	793
UTF-8	CC 99
UTF-16	03 19
UTF-32	00 00 03 19
URL-Quoted	%CC%99
HTML-Escape	̙
Wrong windows-1252 Mojibake	âÌ
L^AT_EX	{\fontencoding{LECO}\selectfont\char185}
AGL: Latin-5	uni0319
Adobe Glyph List	righttackbelowcmb

Elsewhere

Complete Record

Property	Value
Age	1.1 (1993)
Unicode Name	COMBINING RIGHT TACK BELOW
Unicode 1 Name	NON-SPACING RIGHT TACK BELOW
Block	Combining Diacritical Marks
General Category	Nonspacing Mark
Script	Inherited
Bidirectional Category	Nonspacing Mark
Combining Class	Below
Decomposition Type	None
Decomposition Mapping	Combining Right Tack Below
Lowercase	✘
Simple Lowercase Mapping	Combining Right Tack Below
Lowercase Mapping	Combining Right Tack Below
Uppercase	✘
Simple Uppercase Mapping	Combining Right Tack Below
Uppercase Mapping	Combining Right Tack Below
Simple Titlecase Mapping	Combining Right Tack Below
Titlecase Mapping	Combining Right Tack Below
Case Folding	Combining Right Tack Below
ASCII Hex Digit	✘
Alphabetic	✘
Bidi Control	✘
Bidi Mirrored	✘
Composition Exclusion	✘
Case Ignorable	✔
Changes When Casefolded	✘
Changes When Casemapped	✘
Changes When NFKC Casefolded	✘
Changes When Lowercased	✘
Changes When Titlecased	✘
Changes When Uppercased	✘
Cased	✘
Full Composition Exclusion	✘
Default Ignorable Code Point	✘
Dash	✘
Deprecated	✘
Diacritic	✔
Emoji Modifier Base	✘
Emoji Component	✘
Emoji Modifier	✘
Emoji Presentation	✘
Emoji	✘
Extender	✘
Extended Pictographic	✘
FC NFKC Closure	Combining Right Tack Below
Grapheme Cluster Break	Extend
Grapheme Base	✘
Grapheme Extend	✔
Grapheme Link	✘
Hex Digit	✘
Hyphen	✘
ID Continue	✔
ID Start	✘
IDS Binary Operator	✘
IDS Trinary Operator and	✘
Ideographic	✘
Indic Mantra Category	—
Indic Positional Category	NA
Indic Syllabic Category	Other
Jamo Short Name	—
Join Control	✘
Logical Order Exception	✘
Math	✘
Noncharacter Code Point	✘
NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Casefold	Combining Right Tack Below
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Other Alphabetic	✘
Other Default Ignorable Code Point	✘
Other Grapheme Extend	✘
Other ID Continue	✘
Other ID Start	✘
Other Lowercase	✘
Other Math	✘
Other Uppercase	✘
Prepended Concatenation Mark	✘
Pattern Syntax	✘
Pattern White Space	✘
Quotation Mark	✘
Regional Indicator	✘
Radical	✘
Sentence Break	Extend
Soft Dotted	✘
Sentence Terminal	✘
Terminal Punctuation	✘
Unified Ideograph	✘
Variation Selector	✘
Word Break	Extend
White Space	✘
XID Continue	✔
XID Start	✘
Expands On NFC	✘
Expands On NFD	✘
Expands On NFKC	✘
Expands On NFKD	✘
Bidi Paired Bracket	Combining Right Tack Below
Bidi Paired Bracket Type	None
East Asian Width	Ambiguous
Hangul Syllable Type	Not Applicable
ISO 10646 Comment	—
Joining Group	No_Joining_Group
Joining Type	Transparent
Line Break	Combining Mark
Numeric Type	None
Numeric Value	not a number
Simple Case Folding	Combining Right Tack Below
Script Extension
Vertical Orientation	R