Source: Noto Serif Tangut

U+4E00 CJK Unified Ideograph-4E00

U+4E00 was added to Unicode in version 1.1 (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. It has a Wide East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. The glyph can, under circumstances, be confused with 1 other glyphs. In text U+4E00 behaves as Ideographic regarding line breaks. It has type Other Letter for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

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.
In the Kangxi Dictionary, there are 42 characters (out of 49,030) 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: EUC-KR (hex bytes)	EC E9
Encoding: JIS0208 (hex bytes)	B0 EC
Pīnyīn	yī

Related Characters

Confusables

Katakana-Hiragana Prolonged Sound Mark

Elsewhere

Complete Record

Property	Value
Age	1.1 (1993)
Unicode Name	CJK UNIFIED IDEOGRAPH-4E00
Unicode 1 Name	—
Block	CJK Unified Ideographs
General Category	Other Letter
Script	Han
Bidirectional Category	Left To Right
Combining Class	Not Reordered
Decomposition Type	None
Decomposition Mapping	CJK Unified Ideograph-4E00
Lowercase	✘
Simple Lowercase Mapping	CJK Unified Ideograph-4E00
Lowercase Mapping	CJK Unified Ideograph-4E00
Uppercase	✘
Simple Uppercase Mapping	CJK Unified Ideograph-4E00
Uppercase Mapping	CJK Unified Ideograph-4E00
Simple Titlecase Mapping	CJK Unified Ideograph-4E00
Titlecase Mapping	CJK Unified Ideograph-4E00
Case Folding	CJK Unified Ideograph-4E00
ASCII Hex Digit	✘
Alphabetic	✔
Bidi Control	✘
Bidi Mirrored	✘
Composition Exclusion	✘
Case Ignorable	✘
Changes When Casefolded	✘
Changes When Casemapped	✘
Changes When NFKC Casefolded	✘
Changes When Lowercased	✘
Changes When Titlecased	✘
Changes When Uppercased	✘
Cased	✘
Full Composition Exclusion	✘
Default Ignorable Code Point	✘
Dash	✘
Deprecated	✘
Diacritic	✘
Emoji Modifier Base	✘
Emoji Component	✘
Emoji Modifier	✘
Emoji Presentation	✘
Emoji	✘
Extender	✘
Extended Pictographic	✘
FC NFKC Closure	CJK Unified Ideograph-4E00
Grapheme Cluster Break	Any
Grapheme Base	✔
Grapheme Extend	✘
Grapheme Link	✘
Hex Digit	✘
Hyphen	✘
ID Continue	✔
ID Start	✔
IDS Binary Operator	✘
IDS Trinary Operator and	✘
Ideographic	✔
Indic Mantra Category	—
Indic Positional Category	NA
Indic Syllabic Category	Other
Jamo Short Name	—
Join Control	✘
Logical Order Exception	✘
Math	✘
Noncharacter Code Point	✘
NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Casefold	CJK Unified Ideograph-4E00
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Other Alphabetic	✘
Other Default Ignorable Code Point	✘
Other Grapheme Extend	✘
Other ID Continue	✘
Other ID Start	✘
Other Lowercase	✘
Other Math	✘
Other Uppercase	✘
Prepended Concatenation Mark	✘
Pattern Syntax	✘
Pattern White Space	✘
Quotation Mark	✘
Regional Indicator	✘
Radical	✘
Sentence Break	Other Letter
Soft Dotted	✘
Sentence Terminal	✘
Terminal Punctuation	✘
Unified Ideograph	✔
Variation Selector	✘
Word Break	Other
White Space	✘
XID Continue	✔
XID Start	✔
Expands On NFC	✘
Expands On NFD	✘
Expands On NFKC	✘
Expands On NFKD	✘
Bidi Paired Bracket	CJK Unified Ideograph-4E00
Bidi Paired Bracket Type	None
East Asian Width	Wide
Hangul Syllable Type	Not Applicable
ISO 10646 Comment	—
Joining Group	No_Joining_Group
Joining Type	Non Joining
Line Break	Ideographic
Numeric Type	Numeric
Numeric Value	1
Simple Case Folding	CJK Unified Ideograph-4E00
Script Extension
Vertical Orientation	U
Big Five Mapping	A440
CCCII Mapping	213021
CNS 11643-1986 Mapping	1-4421
CNS 11643-1992 Mapping	1-4421
Cangjie Input Code	M
kCantonese	jat1
kCihaiT	1.101
kCowles	5133
kDaeJaweon	0129.010
Unihan Definition	one; a, an; alone
kEACC	213021
kFenn	1A
kFennIndex	216.01 217.06 218.01 220.06
kFourCornerCode	1000.0
kFrequency	1
kGB0	5027
kGB1	5027
kGSR	0394a
kGradeLevel	1
kHDZRadBreak	⼀[U+2F00]:10001.010
kHKGlyph	0001
kHanYu	10001.010
kHangul	일:0E
kHanyuPinlu	yī(32747)
kHanyuPinyin	10001.010:yī
kIICore	AGTJHKMP
kIRGDaeJaweon	0129.010
kIRGDaiKanwaZiten	00001
kIRGHanyuDaZidian	10001.010
kIRGKangXi	0075.010
kIRG_GSource	G0-523B
kIRG_HSource	HB1-A440
kIRG_JSource	J0-306C
kIRG_KPSource	KP0-FCD6
kIRG_KSource	K0-6C69
kIRG_TSource	T1-4421
kIRG_VSource	V1-4A21
kJapaneseKun	HITOTSU HITOTABI HAJIME
kJapaneseOn	ICHI ITSU
kJis0	1676
kJoyoKanji	2010
kKPS0	FCD6
kKSC0	7673
kKangXi	0075.010
kKarlgren	175
kKorean	IL
kKoreanEducationHanja	2007
kLau	3341
kMainlandTelegraph	0001
kMandarin	yī
kMatthews	3016
kMeyerWempe	3837
kMorohashi	00001
kNelson	0001
kPhonetic	1499
Primary Numeric Value	1
Radical Stroke Count (Adobe Japan 1-6)	C+1200+1.1.0
Radical Stroke Count (KangXi)	1.0
Radical Stroke Count (Unicode)	1.0
kSBGY	468.40
Semantic Variant	U+5F0C U+58F9
Specialized Semantic Variant	U+58F9
kTGH	2013:1
kTGHZ2013	430.150:yī
Taiwanese Telegraph Code	0001
kTang	*qit qit
Stroke Number	1
UnihanCore2020 Set	GHJKMPT
Quốc ngữ Pronunciation	nhất
kXHC1983	1351.020:yī 1360.040:yí 1368.160:yì
Xerox Code	241:042

U+4E00 CJK Unified Ideo­graph-​4E00