Source: Noto Sans

U+A721 Modifier Letter Stress and Low Tone

U+A721 was added in Unicode version 5.0 in 2006. It belongs to the block U+A720 to U+A7FF Latin Extended-D in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Modifier Symbol and is commonly used, that is, in no specific script.

The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+A721 forms with similar adjacent characters prevents a line break inside it.

The Wikipedia has the following information about this codepoint:

Latin Extended-D is a Unicode block containing Latin characters for phonetic, Mayanist, and Medieval transcription and notation systems. 89 of the characters in this block are for medieval characters proposed by the Medieval Unicode Font Initiative, many of which are representative of scribal abbreviations used in Medieval manuscript texts.

Representations

System	Representation
Nº	42785
UTF-8	EA 9C A1
UTF-16	A7 21
UTF-32	00 00 A7 21
URL-Quoted	%EA%9C%A1
HTML hex reference	꜡
Wrong windows-1252 Mojibake	â—Œêœ¡
Encoding: GB18030 (hex bytes)	82 36 D0 38

Elsewhere

Complete Record

Property	Value
Age (age)	5.0 (2006)
Unicode Name (na)	MODIFIER LETTER STRESS AND LOW TONE
Unicode 1 Name (na1)	—
Block (blk)	Latin Extended-D
General Category (gc)	Modifier Symbol
Script (sc)	Common
Bidirectional Category (bc)	Other Neutral
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	none
Decomposition Mapping (dm)	Modifier Letter Stress and Low Tone
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Modifier Letter Stress and Low Tone
Lowercase Mapping (lc)	Modifier Letter Stress and Low Tone
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Modifier Letter Stress and Low Tone
Uppercase Mapping (uc)	Modifier Letter Stress and Low Tone
Simple Titlecase Mapping (stc)	Modifier Letter Stress and Low Tone
Titlecase Mapping (tc)	Modifier Letter Stress and Low Tone
Case Folding (cf)	Modifier Letter Stress and Low Tone
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)	Modifier Letter Stress and Low Tone
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)	Modifier Letter Stress and Low Tone
NFKC Quick Check (NFKC_QC)	Yes
NFKC_SCF (NFKC_SCF)	Modifier Letter Stress and Low Tone
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)	Alphabetic Letter
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)	Modifier Letter Stress and Low Tone
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)	Non Joining
Line Break (lb)	Alphabetic
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Modifier Letter Stress and Low Tone
Script Extension (scx)
Vertical Orientation (vo)	R