Source: Noto Serif Tangut

U+FF18 Fullwidth Digit Eight

U+FF18 was added in Unicode version 1.1 in 1993. It belongs to the block U+FF00 to U+FFEF Halfwidth and Fullwidth Forms in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Decimal Number and is commonly used, that is, in no specific script. The codepoint has the decimal value 8.

The glyph is a wide version of the glyph Digit Eight. Accordingly, its width in East Asian Text is fullwidth. In bidirectional text it is written as European number from left to right. When changing direction it is not mirrored. This number joins with other adjacent letters and numbers to form a word. U+FF18 offers a line break opportunity at its position, except in some numeric contexts.

The Wikipedia has the following information about this codepoint:

8 (eight) is the natural number following 7 and preceding 9.

Representations

System	Representation
Nº	65304
UTF-8	EF BC 98
UTF-16	FF 18
UTF-32	00 00 FF 18
URL-Quoted	%EF%BC%98
HTML hex reference	８
Wrong windows-1252 Mojibake	ï¼˜
Encoding: EUC-KR (hex bytes)	A3 B8
Encoding: JIS0208 (hex bytes)	A3 B8
Adobe Glyph List	eightmonospace

Elsewhere

Complete Record

Property	Value
Age (age)	1.1 (1993)
Unicode Name (na)	FULLWIDTH DIGIT EIGHT
Unicode 1 Name (na1)	—
Block (blk)	Halfwidth and Fullwidth Forms
General Category (gc)	Decimal Number
Script (sc)	Common
Bidirectional Category (bc)	European Number
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	wide
Decomposition Mapping (dm)	Digit Eight
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Fullwidth Digit Eight
Lowercase Mapping (lc)	Fullwidth Digit Eight
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Fullwidth Digit Eight
Uppercase Mapping (uc)	Fullwidth Digit Eight
Simple Titlecase Mapping (stc)	Fullwidth Digit Eight
Titlecase Mapping (tc)	Fullwidth Digit Eight
Case Folding (cf)	Fullwidth Digit Eight
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)	Fullwidth Digit Eight
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)	✘
Math (Math)	✘
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Digit Eight
NFKC Quick Check (NFKC_QC)	No
NFKC_SCF (NFKC_SCF)	Digit Eight
NFKD Quick Check (NFKD_QC)	No
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)	Numeric
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✘
Variation Selector (VS)	✘
Word Break (WB)	Numeric
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)	Fullwidth Digit Eight
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	fullwidth
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Ideographic
Numeric Type (nt)	decimal
Numeric Value (nv)	8
Simple Case Folding (scf)	Fullwidth Digit Eight
Script Extension (scx)
Vertical Orientation (vo)	U