U+FF81 HALFWIDTH KATAKANA LETTER TI

U+FF81 was added to Unicode in version 1.1 (1993). It belongs to the block Halfwidth and Fullwidth Forms in the Basic Multilingual Plane.

This character is a Other Letter and is mainly used in the Katakana script.

The glyph is a Narrow composition of the glyphs チ. It has a Halfwidth East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. In text U+FF81 behaves as Alphabetic regarding line breaks. It has type OLetter for sentence and Katakana for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

, in hiragana, or in katakana, is one of the Japanese kana, which each represent one mora. Both are phonemically /ti/ although for phonological reasons, the actual pronunciation is [t͡ɕi].

The kanji for one thousand (千, sen), appears similar to チ, and at one time they were related, but today チ is used as phonetic, while the kanji carries an entirely unrelated meaning.

Many onomatopoeic words beginning with ち pertain to things that are small or quick.

The dakuten forms ぢ, ヂ, pronounced the same as the dakuten forms of the shi kana in most dialects (see yotsugana), are uncommon. They are primarily used for indicating a voiced consonant in the middle of a compound word (see rendaku), and they can never begin a word, although some people will write the word for hemorrhoids (normally じ) as ぢ for emphasis. Additionally, the dakuten form of the shi character is sometimes used when transliterating "di", as opposed to チ's dakuten form; for example, Aladdin is written as アラジン Arajin, and radio is written as ラジオ.

In the Ainu language, チ by itself is pronounced [t͡ʃi], and can be combined with the katakana ヤ, ユ, エ, and ヨ to write the other [t͡ʃ] sounds as well as [t͡s] sounds. The combination チェ (pronounced [t͡se]), is interchangeable with セ゚.

Representations

System Representation
65409
UTF-8 EF BE 81
UTF-16 FF 81
UTF-32 00 00 FF 81
URL-Quoted %EF%BE%81
HTML-Escape チ
Wrong windows-1252 Mojibake チ

Elsewhere

Complete Record

Property Value
Age (age) 1.1
Unicode Name (na) HALFWIDTH KATAKANA LETTER TI
Unicode 1 Name (na1)
Block (blk) Half_And_Full_Forms
General Category (gc) Other Letter
Script (sc) Katakana
Bidirectional Category (bc) Left To Right
Combining Class (ccc) Not Reordered
Decomposition Type (dt) Narrow
Decomposition Mapping (dm) チ
Lowercase (Lower)
Simple Lowercase Mapping (slc) チ
Lowercase Mapping (lc) チ
Uppercase (Upper)
Simple Uppercase Mapping (suc) チ
Uppercase Mapping (uc) チ
Simple Titlecase Mapping (stc) チ
Titlecase Mapping (tc) チ
Case Folding (cf) チ
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi Control (Bidi_C)
Bidi Mirrored (Bidi_M)
Bidi Paired Bracket (bpb) チ
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) Halfwidth
Extender (Ext)
FC NFKC Closure (FC_NFKC) チ
Grapheme Cluster Break (GCB) Any
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)
InMC (InMC)
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) Non Joining
Line Break (lb) Alphabetic
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) チ
NFKC Quick Check (NFKC_QC) No
NFKD Quick Check (NFKD_QC) No
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) OLetter
Simple Case Folding (scf) チ
Script Extension (scx) Katakana
Soft Dotted (SD)
STerm (STerm)
Terminal Punctuation (Term)
Unified Ideograph (UIdeo)
Variation Selector (VS)
Word Break (WB) Katakana
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)