Home Hexagram for Before Completion U+4E00 to U+9FFF CJK Unified Ideographs CJK Unified Ideograph-4E01

Source: Noto Serif Tangut

U+4E00 CJK Unified Ideograph-4E00

U+4E00 was added in Unicode version 1.1 in 1993. It belongs to the block U+4E00 to U+9FFF CJK Unified Ideographs in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Letter and is mainly used in the Han script. The Unihan Database defines it as one; a, an; alone. Its Pīnyīn pronunciation is yī. The codepoint has the numeric value 1.

The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. U+4E00 offers a line break opportunity at its position, except in some numeric contexts. The glyph can be confused with one other glyph.

The Wikipedia has the following information about this codepoint:

Radical 1 or radical one (一部) meaning "one" is one of the 6 Kangxi radicals (214 radicals in total) composed of 1 stroke. It is the simplest Chinese character in the language due to consisting of only one line.
In the Kangxi Dictionary, there are 60 characters (out of 47,043) to be found under this radical.
一 is also the 1st indexing component in the Table of Indexing Chinese Character Components predominantly adopted by Simplified Chinese dictionaries published in mainland China.

Representations

System	Representation
Nº	19968
UTF-8	E4 B8 80
UTF-16	4E 00
UTF-32	00 00 4E 00
URL-Quoted	%E4%B8%80
HTML hex reference	一
Wrong windows-1252 Mojibake	ä¸€
Encoding: BIG5 (hex bytes)	A4 40
Encoding: BIG5HKSCS (hex bytes)	A4 40
Encoding: CP932 (hex bytes)	88 EA
Encoding: CP949 (hex bytes)	EC E9
Encoding: CP950 (hex bytes)	A4 40
Encoding: EUC_JP (hex bytes)	B0 EC
Encoding: EUC_JIS_2004 (hex bytes)	B0 EC
Encoding: EUC_JISX0213 (hex bytes)	B0 EC
Encoding: EUC_KR (hex bytes)	EC E9
Encoding: GB2312 (hex bytes)	D2 BB
Encoding: GBK (hex bytes)	D2 BB
Encoding: GB18030 (hex bytes)	D2 BB
Encoding: HZ (hex bytes)	7E 7B 52 3B 7E 7D
Encoding: ISO2022_JP (hex bytes)	1B 24 42 30 6C 1B 28 42
Encoding: ISO2022_JP_1 (hex bytes)	1B 24 42 30 6C 1B 28 42
Encoding: ISO2022_JP_2 (hex bytes)	1B 24 42 30 6C 1B 28 42
Encoding: ISO2022_JP_2004 (hex bytes)	1B 24 42 30 6C 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)	1B 24 42 30 6C 1B 28 42
Encoding: ISO2022_JP_EXT (hex bytes)	1B 24 42 30 6C 1B 28 42
Encoding: ISO2022_KR (hex bytes)	1B 24 29 43 0E 6C 69 0F
Encoding: JOHAB (hex bytes)	F1 79
Encoding: SHIFT_JIS (hex bytes)	88 EA
Encoding: SHIFT_JIS_2004 (hex bytes)	88 EA
Encoding: SHIFT_JISX0213 (hex bytes)	88 EA
Pīnyīn	yī

Related Characters

Confusables

Katakana-Hiragana Prolonged Sound Mark

Elsewhere

Complete Record

Property	Value
Age (age)	1.1 (1993)
Unicode Name (na)	CJK UNIFIED IDEOGRAPH-4E00
Unicode 1 Name (na1)	—
Block (blk)	CJK Unified Ideographs
General Category (gc)	Other Letter
Script (sc)	Han
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	none
Decomposition Mapping (dm)	CJK Unified Ideograph-4E00
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	CJK Unified Ideograph-4E00
Lowercase Mapping (lc)	CJK Unified Ideograph-4E00
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	CJK Unified Ideograph-4E00
Uppercase Mapping (uc)	CJK Unified Ideograph-4E00
Simple Titlecase Mapping (stc)	CJK Unified Ideograph-4E00
Titlecase Mapping (tc)	CJK Unified Ideograph-4E00
Case Folding (cf)	CJK Unified Ideograph-4E00
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)	CJK Unified Ideograph-4E00
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)	CJK Unified Ideograph-4E00
NFKC Quick Check (NFKC_QC)	Yes
NFKC_SCF (NFKC_SCF)	CJK Unified Ideograph-4E00
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 Letter
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✔
Variation Selector (VS)	✘
Word Break (WB)	Other
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)	CJK Unified Ideograph-4E00
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	wide
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)	numeric
Numeric Value (nv)	1
Simple Case Folding (scf)	CJK Unified Ideograph-4E00
Script Extension (scx)
Vertical Orientation (vo)	U
Big Five Mapping (kBigFive)	A440
CCCII Mapping (kCCCII)	213021
CNS 11643-1986 Mapping (kCNS1986)	1-4421
CNS 11643-1992 Mapping (kCNS1992)	1-4421
Cangjie Input Code (kCangjie)	M
kCantonese (kCantonese)	jat1
kCihaiT (kCihaiT)	1.101
kCowles (kCowles)	5133
kDaeJaweon (kDaeJaweon)	0129.010
Unihan Definition (kDefinition)	one; a, an; alone
kEACC (kEACC)	213021
kFanqie (kFanqie)	於悉
kFenn (kFenn)	1A
kFennIndex (kFennIndex)	216.01 217.06 218.01 220.06
kFourCornerCode (kFourCornerCode)	1000.0
kGB0 (kGB0)	5027
kGB1 (kGB1)	5027
kGSR (kGSR)	0394a
kGradeLevel (kGradeLevel)	1
kHDZRadBreak (kHDZRadBreak)	⼀[U+2F00]:10001.010
kHKGlyph (kHKGlyph)	0001
kHanYu (kHanYu)	10001.010
kHangul (kHangul)	일:0E
kHanyuPinlu (kHanyuPinlu)	yī(32747)
kHanyuPinyin (kHanyuPinyin)	10001.010:yī
kIICore (kIICore)	AGTJHKMP
kIRGDaeJaweon (kIRGDaeJaweon)	0129.010
kIRGHanyuDaZidian (kIRGHanyuDaZidian)	10001.010
kIRGKangXi (kIRGKangXi)	0075.010
kIRG_GSource (kIRG_GSource)	G0-523B
kIRG_HSource (kIRG_HSource)	HB1-A440
kIRG_JSource (kIRG_JSource)	J0-306C
kIRG_KPSource (kIRG_KPSource)	KP0-FCD6
kIRG_KSource (kIRG_KSource)	K0-6C69
kIRG_TSource (kIRG_TSource)	T1-4421
kIRG_VSource (kIRG_VSource)	V1-4A21
kJapanese (kJapanese)	イチイツひとひとつ
kJapaneseKun (kJapaneseKun)	HITOTSU HITOTABI HAJIME
kJapaneseOn (kJapaneseOn)	ICHI ITSU
kJis0 (kJis0)	1676
kJoyoKanji (kJoyoKanji)	2010
kKangXi (kKangXi)	0075.010
kKarlgren (kKarlgren)	175
kKorean (kKorean)	IL
kKoreanEducationHanja (kKoreanEducationHanja)	2007
kLau (kLau)	3341
kMainlandTelegraph (kMainlandTelegraph)	0001
kMandarin (kMandarin)	yī
kMatthews (kMatthews)	3016
kMeyerWempe (kMeyerWempe)	3837
kMojiJoho (kMojiJoho)	MJ006294
kMorohashi (kMorohashi)	00001
kNelson (kNelson)	0001
kPhonetic (kPhonetic)	1499
Primary Numeric Value (kPrimaryNumeric)	1
Radical Stroke Count (Adobe Japan 1-6) (kRSAdobe_Japan1_6)	C+1200+1.1.0
Radical Stroke Count (Unicode) (kRSUnicode)	1.0
kSBGY (kSBGY)	468.40
kSMSZD2003Index (kSMSZD2003Index)	1.01
kSMSZD2003Readings (kSMSZD2003Readings)	yī粵jat1
Semantic Variant (kSemanticVariant)	U+5F0C U+58F9
Specialized Semantic Variant (kSpecializedSemanticVariant)	U+58F9
kTGH (kTGH)	2013:1
kTGHZ2013 (kTGHZ2013)	430.150:yī
Taiwanese Telegraph Code (kTaiwanTelegraph)	0001
kTang (kTang)	*qit qit
Stroke Number (kTotalStrokes)	1
UnihanCore2020 Set (kUnihanCore2020)	GHJKMPT
Quốc ngữ Pronunciation (kVietnamese)	nhất
kXHC1983 (kXHC1983)	1351.020:yī 1360.040:yí 1368.160:yì
Xerox Code (kXerox)	241:042