U+5400 "吀" CJK Unified Ideograph-# Unicode Character

U+5400 "吀" CJK Unified Ideograph-# is a Chinese character that historically carries the meaning of a smile or to laugh, though it is considered archaic and is rarely used in modern standard Chinese writing. This character belongs to the CJK (Chinese, Japanese, Korean) Unified Ideographs block and is composed of the radical for mouth, representing speech or sound, alongside a phonetic component that suggests its pronunciation. In contemporary contexts, it may appear in classical texts or specialized dictionaries but has largely been replaced by more common characters like 笑 for the concept of smiling.

General Properties

Code Point	U+5400
Version Added	1.1
Name	CJK Unified Ideograph-#
Block	CJK Unified Ideographs
General Category	Other Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	吀
HTML Hex Encoding	吀
UTF-8 Encoding	0xE5 0x90 0x80
UTF-16 Encoding	0x5400
UTF-32 Encoding	0x00005400
C/C++/Java Escape	\u5400

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Ideographic
East Asian Width	Wide
Script	Han
Script Extensions	Han
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Upright
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	OLetter
Ideographic	Yes
Unified Ideograph	Yes

Unihan Properties

kCCCII	216E65
kCNS1986	E-2337
kCNS1992	3-2337
kCangjie	RHJ
kCantonese	mei5
kDaeJaweon	0387.050
kHanYu	10579.030
kIRGDaeJaweon	0387.050
kIRGHanyuDaZidian	10579.030
kIRGKangXi	0174.130
kIRG_GSource	GE-3337
kIRG_JSource	JMJ-008054
kIRG_KPSource	KP1-3937
kIRG_TSource	T3-2337
kIRG_VSource	V0-306A
kJapanese	バ
kKangXi	0174.130
kMandarin	miē
kMojiJoho	MJ008054
kMorohashi	03274
kRSUnicode	30.3
kTotalStrokes	6
kVietnamese	xiên