Source: Noto CJK

U+BD81 Hangul Syllable Bug

U+BD81 was added in Unicode version 2.0 in 1996. It belongs to the block U+AC00 to U+D7AF Hangul Syllables in the U+0000 to U+FFFF Basic Multilingual Plane.

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

The glyph is a canonical composition of the glyphs Hangul Syllable Bu, Hangul Jongseong Kiyeok. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+BD81 forms a Korean syllable block with similar characters, which prevents a line break inside it.

The Wikipedia has the following information about this codepoint:

The buk (Korean: 북) is a traditional Korean drum. While the term buk is a native Korean word used as a generic term meaning "drum" (the Sino-Korean word being go), it is most often used to refer to a shallow barrel-shaped drum, with a round wooden body that is covered on both ends with animal skin. Buk are categorized as hyeokbu (혁부, 革部) which are instruments made with leather, and has been used for jeongak (Korean court music) and folk music.

Representations

System	Representation
Nº	48513
UTF-8	EB B6 81
UTF-16	BD 81
UTF-32	00 00 BD 81
URL-Quoted	%EB%B6%81
HTML hex reference	북
Wrong windows-1252 Mojibake	ë¶
Encoding: EUC-KR (hex bytes)	BA CF

Elsewhere

Complete Record

Property	Value
Age (age)	2.0 (1996)
Unicode Name (na)	HANGUL SYLLABLE BUG
Unicode 1 Name (na1)	—
Block (blk)	Hangul Syllables
General Category (gc)	Other Letter
Script (sc)	Hangul
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	canonical
Decomposition Mapping (dm)	Hangul Syllable Bu Hangul Jongseong Kiyeok
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Hangul Syllable Bug
Lowercase Mapping (lc)	Hangul Syllable Bug
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Hangul Syllable Bug
Uppercase Mapping (uc)	Hangul Syllable Bug
Simple Titlecase Mapping (stc)	Hangul Syllable Bug
Titlecase Mapping (tc)	Hangul Syllable Bug
Case Folding (cf)	Hangul Syllable Bug
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)	Hangul Syllable Bug
Grapheme Cluster Break (GCB)	Hangul Syllable Type LVT
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)	No
NFKC Casefold (NFKC_CF)	Hangul Syllable Bug
NFKC Quick Check (NFKC_QC)	Yes
NFKC_SCF (NFKC_SCF)	Hangul Syllable Bug
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)	Other Letter
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)	Hangul Syllable Bug
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	wide
Hangul Syllable Type (hst)	LVT Syllable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Hangul LVT Syllable
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Hangul Syllable Bug
Script Extension (scx)
Vertical Orientation (vo)	U