U+53E3 "口" CJK Unified Ideograph-# Unicode Character
Unicode Version 17.0
口
U+53E3 "口" CJK Unified Ideograph-# is a fundamental Chinese character that represents the concept of a mouth, opening, or entrance. It is one of the most common radicals in the CJK (Chinese, Japanese, and Korean) writing systems, appearing as a component in numerous other characters to denote actions, shapes, or objects related to an opening. In addition to its literal meaning of "mouth," it can signify a person, a hole, or a unit of measure, such as in counting family members or containers. This character is also highly versatile in compound words, where it often conveys ideas of speech, taste, or boundary. Its simple square shape makes it a foundational element in East Asian typography and calligraphy.
General Properties
| Code Point | U+53E3 |
| 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 | 口 |
| HTML Hex Encoding | 口 |
| UTF-8 Encoding | 0xE5 0x8F 0xA3 |
| UTF-16 Encoding | 0x53E3 |
| UTF-32 Encoding | 0x000053E3 |
| C/C++/Java Escape | \u53e3 |
Unicode Properties
Unihan Properties
| kBigFive | A466 |
| kCCCII | 21352C |
| kCNS1986 | 1-4447 |
| kCNS1992 | 1-4447 |
| kCangjie | R |
| kCantonese | hau2 |
| kCowles | 1006 |
| kDaeJaweon | 0379.170 |
| kDefinition | mouth; open end; entrance, gate |
| kEACC | 21352C |
| kFanqie | 苦后 |
| kFenn | 694A |
| kFennIndex | 256.11 257.01 |
| kFourCornerCode | 6000.0 |
| kGB0 | 3158 |
| kGB1 | 3158 |
| kGradeLevel | 1 |
| kGSR | 0110a |
| kHangul | 구:0E |
| kHanYu | 10566.140 |
| kHanyuPinlu | kǒu(1647) kou(74) |
| kHanyuPinyin | 10566.140:kǒu |
| kHDZRadBreak | ⼝[U+2F1D]:10566.140 |
| kHKGlyph | 0474 |
| kIICore | AGTJHKMP |
| kIRGDaeJaweon | 0379.170 |
| kIRGHanyuDaZidian | 10566.140 |
| kIRGKangXi | 0171.010 |
| kIRG_GSource | G0-3F5A |
| kIRG_HSource | HB1-A466 |
| kIRG_JSource | J0-387D |
| kIRG_KPSource | KP0-D0E7 |
| kIRG_KSource | K0-4F22 |
| kIRG_TSource | T1-4447 |
| kIRG_VSource | V1-4E33 |
| kJapanese | コウ ク くち |
| kJoyoKanji | 2010 |
| kKoreanEducationHanja | 2007 |
| kTGH | 2013:38 |
| kJapaneseKun | KUCHI |
| kJapaneseOn | KOU KU |
| kJis0 | 2493 |
| kKangXi | 0171.010 |
| kKarlgren | 419 |
| kKorean | KWU |
| kLau | 1144 |
| kMainlandTelegraph | 0656 |
| kMandarin | kǒu |
| kMatthews | 3434 |
| kMeyerWempe | 681 |
| kMojiJoho | MJ008023 |
| kMorohashi | 03227 |
| kNelson | 0868 |
| kPhonetic | 445 |
| kRSAdobe_Japan1_6 | C+1969+30.3.0 |
| kRSUnicode | 30.0 |
| kSBGY | 327.31 |
| kSMSZD2003Index | 87.01 |
| kSMSZD2003Readings | kǒu粵hau2 |
| kTaiwanTelegraph | 0656 |
| kTang | *kǒu |
| kTGHZ2013 | 198.130:kǒu |
| kTotalStrokes | 3 |
| kUnihanCore2020 | GHJKMPT |
| kVietnamese | khẩu |
| kXerox | 241:356 |
| kXHC1983 | 0649.070:kǒu |