U+5F00 "开" CJK Unified Ideograph-# Unicode Character
Unicode Version 18.0
Source: Browser Default
U+5F00 "开" CJK Unified Ideograph-# is a foundational Chinese character traditionally meaning "to open" or "to start," and it is widely used in East Asian languages including Chinese, Japanese, and Korean. Visually composed of two simple strokes that suggest a gateway or separating action, it appears in everyday vocabulary such as "开张" (to open a business), "开始" (to begin), and "开关" (a switch or valve). In historical contexts, the character also carries meanings related to unlocking, initiating, or bringing forth, reflecting its role as a basic yet essential component in written communication across the CJK script system.
General Properties
Code Point
U+5F00
Name
CJK Unified Ideograph-#
Encodings
HTML Decimal Encoding
开
HTML Hex Encoding
开
UTF-8 Encoding
0xE5 0xBC 0x80
UTF-16 Encoding
0x5F00
UTF-32 Encoding
0x00005F00
C/C++/Java Escape
\u5f00
Unicode Properties
Numeric Value
NaN
Script Extensions
Han
Unihan Properties
kCCCII
275E53
kCangjie
MT
kCantonese
hoi1
kDefinition
open; initiate, begin, start
kEACC
275E53
kFenn
34K
kFennIndex
64.05
kFourCornerCode
1044
kGB0
3110
kHanYu
10514.030
kHanyuPinlu
kāi(3483)
kIICore
AG
kIRGHanyuDaZidian
10514.030
kIRG_GSource
G0-3F2A
kIRG_JSource
J3-7431
kIRG_TSource
T4-214D
kJapanese
カイ ひらく
kTGH
2013:76
kJIS0213
1,84,17
kKangXi
0353.101
kKarlgren
379
kMainlandTelegraph
7030
kMandarin
kāi
kMojiJoho
MJ011123
kPhonetic
103 488 617
kRSAdobe_Japan1_6
C+16854+1.1.3 C+16854+55.3.1
kRSUnicode
55.1 1.3
kSemanticVariant
U+5E75<kFenn
kSimplifiedVariant
kSMSZD2003Index
3.10 205.05
kTGHZ2013
191.080:kāi
kTotalStrokes
4
kTraditionalVariant
kUnihanCore2020
G
kXHC1983
0626.050:kāi