U+542F "启" CJK Unified Ideograph-# Unicode Character

Unicode Version 17.0

启

U+542F "启" CJK Unified Ideograph-# is a Chinese character (hanzi) that primarily means "to open," "to start," or "to enlighten," and it is also used in some Japanese, Korean, and Vietnamese contexts. Its structure combines the "mouth" radical (口) with a component suggesting opening or initiating, and it appears in common compounds like 开始 (kāishǐ, "to begin") or 启程 (qǐchéng, "to set out on a journey"). The character carries a sense of beginning or revealing, which is reflected in its use in words such as "启明" (Qiming, "morning star" or Enlightenment) and in modern contexts like technology, where it denotes system startup or activation. This ideograph is part of the CJK Unified Ideographs block in Unicode, which unifies similar characters from Chinese, Japanese, and Korean into a single encoding standard.

General Properties

Code Point	U+542F
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	启
HTML Hex Encoding	启
UTF-8 Encoding	0xE5 0x90 0xAF
UTF-16 Encoding	0x542F
UTF-32 Encoding	0x0000542F
C/C++/Java Escape	\u542f

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	216E6B
kCNS1986	E-2524
kCNS1992	3-2524
kCangjie	ISR
kCantonese	kai2
kCihaiT	263.302
kDaeJaweon	0396.070
kDefinition	open; begin, commence; explain
kEACC	3F424F
kFanqie	康禮
kFourCornerCode	3026
kGB0	3884
kGSR	0588a
kHanYu	10594.100
kHanyuPinlu	qǐ(60)
kHanyuPinyin	10594.100:qǐ
kIICore	AG
kIRGDaeJaweon	0396.070
kIRGHanyuDaZidian	10594.100
kIRGKangXi	0178.210
kIRG_GSource	G0-4674
kIRG_HSource	H-FB44
kIRG_JSource	J1-346B
kIRG_KPSource	KP1-3948
kIRG_KSource	K2-2647
kIRG_TSource	T3-2524
kJapanese	ケイ
kTGH	2013:886
kJapaneseKun	HIRAKU
kJapaneseOn	KEI
kJis1	2075
kKangXi	0178.210
kKarlgren	336
kKorean	KYEY
kMainlandTelegraph	0796
kMandarin	qǐ
kMojiJoho	MJ008104
kMorohashi	03357
kPhonetic	563
kRSAdobe_Japan1_6	C+21253+30.3.4 C+21253+63.4.3
kRSUnicode	30.4 63.3
kSBGY	269.50
kSMSZD2003Index	237.11
kTGHZ2013	293.040:qǐ
kTotalStrokes	7
kTraditionalVariant	"啓" U+5553 CJK Unified Ideograph-# "啟" U+555F CJK Unified Ideograph-#
kUnihanCore2020	GH
kXHC1983	0898.130:qǐ