U+6537 "攷" CJK Unified Ideograph-# Unicode Character

Unicode Version 17.0

攷

U+6537 "攷" CJK Unified Ideograph-# is a Chinese character that primarily means "to examine," "to test," or "to verify," and it is historically related to the concept of textual criticism or collation. In classical Chinese, it often appears in scholarly contexts, such as in the phrase "攷證" (kǎozhèng), which refers to the process of verifying evidence or conducting research. The character is composed of the radical "攴" (pū), meaning "to strike" or "to tap," suggesting an original action of checking or examining carefully, and it is considered a variant or alternative form of the more common character "考" (kǎo). While less frequently used in modern standard Mandarin, "攷" retains its significance in historical texts, linguistics, and certain technical domains where precise examination or authentication is emphasized.

General Properties

Code Point	U+6537
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	攷
HTML Hex Encoding	攷
UTF-8 Encoding	0xE6 0x94 0xB7
UTF-16 Encoding	0x6537
UTF-32 Encoding	0x00006537
C/C++/Java Escape	\u6537

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

kBigFive	CAF7
kCCCII	223629
kCNS1986	2-224D
kCNS1992	2-224D
kCangjie	MSOK
kCantonese	haau2
kCihaiT	599.401
kDaeJaweon	0816.010
kDefinition	examine, test; investigate
kEACC	2D525D
kFanqie	苦浩
kFennIndex	245.05
kFourCornerCode	1824.0
kGSR	1041j
kHangul	고:0N
kHanYu	21448.010
kHanyuPinyin	21448.010:kǎo
kIICore	AJKP
kIRGDaeJaweon	0816.010
kIRGHanyuDaZidian	21448.010
kIRGKangXi	0468.080
kIRG_GSource	GE-3B31
kIRG_HSource	HB2-CAF7
kIRG_JSource	J0-5A3F
kIRG_KPSource	KP0-CFE3
kIRG_KSource	K0-4D39
kIRG_TSource	T2-224D
kIRG_VSource	V1-5778
kJapanese	コウかんがえる
kKoreanName	2015
kJapaneseKun	KANGAERU
kJapaneseOn	KOU
kJis0	5831
kKangXi	0468.080
kKarlgren	358
kKorean	KO
kLau	1109
kMandarin	kǎo
kMatthews	3299
kMeyerWempe	649
kMojiJoho	MJ012951
kMorohashi	13111
kPhonetic	425
kRSAdobe_Japan1_6	C+5060+66.4.2
kRSUnicode	66.2
kSBGY	303.44
kSemanticVariant	U+8003<kMatthews
kSMSZD2003Index	275.01
kTaiwanTelegraph	2393
kTotalStrokes	6
kUnihanCore2020	HJKMPT
kVietnamese	khảo
kXerox	322:124
kXHC1983	0636.011:kǎo