U+7A7A "空" CJK Unified Ideograph-# Unicode Character
Unicode Version 17.0
空
U+7A7A "空" CJK Unified Ideograph-# is a logogram used in multiple East Asian writing systems, including Chinese, Japanese, and Korean. It primarily conveys the abstract concepts of emptiness, vacancy, the sky, or the void, and is a common component in philosophical, religious, and everyday vocabulary, such as in the Chinese term for "space" or the Buddhist concept of "sunyata" (emptiness). The character consists of a radical for "cave" or "hole" atop a phonetic element, reflecting its original meaning of a hollow cavity.
General Properties
| Code Point | U+7A7A |
| 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 | 空 |
| HTML Hex Encoding | 空 |
| UTF-8 Encoding | 0xE7 0xA9 0xBA |
| UTF-16 Encoding | 0x7A7A |
| UTF-32 Encoding | 0x00007A7A |
| C/C++/Java Escape | \u7a7a |
Unicode Properties
Unihan Properties
| kBigFive | AAC5 |
| kCCCII | 214F50 |
| kCNS1986 | 1-4F28 |
| kCNS1992 | 1-4F28 |
| kCangjie | JCM |
| kCantonese | hung1 |
| kCihaiT | 997.601 |
| kCowles | 1226 1234 |
| kDaeJaweon | 1289.080 |
| kDefinition | empty, hollow, bare, deserted |
| kEACC | 214F50 |
| kFanqie | 苦紅 苦貢 |
| kFenn | 10B |
| kFennIndex | 279.05 280.02 |
| kFourCornerCode | 3010.1 |
| kGB0 | 3153 |
| kGB1 | 3153 |
| kGradeLevel | 1 |
| kGSR | 1172h |
| kHangul | 공:0E |
| kHanYu | 42719.080 |
| kHanyuPinlu | kōng(857) kòng(69) |
| kHanyuPinyin | 42719.080:kōng,kǒng,kòng |
| kHKGlyph | 2935 |
| kIICore | AGTJHKMP |
| kIRGDaeJaweon | 1289.080 |
| kIRGHanyuDaZidian | 42719.080 |
| kIRGKangXi | 0863.010 |
| kIRG_GSource | G0-3F55 |
| kIRG_HSource | HB1-AAC5 |
| kIRG_JSource | J0-3675 |
| kIRG_KPSource | KP0-D0C2 |
| kIRG_KSource | K0-4D76 |
| kIRG_TSource | T1-4F28 |
| kIRG_VSource | V1-614C |
| kJapanese | クウ コウ ク そら あく あける から むなしい すく |
| kJoyoKanji | 2010 |
| kKoreanEducationHanja | 2007 |
| kTGH | 2013:1282 |
| kJapaneseKun | KARA AKU SORA |
| kJapaneseOn | KUU |
| kJis0 | 2285 |
| kKangXi | 0863.010 |
| kKarlgren | 469 |
| kKorean | KONG |
| kLau | 1252 1253 |
| kMainlandTelegraph | 4500 |
| kMandarin | kōng |
| kMatthews | 3722 |
| kMeyerWempe | 823 830 |
| kMojiJoho | MJ019210 MJ019210:E0102 MJ019211:E0103 |
| kMorohashi | 25415 25415:E0102 |
| kNelson | 3317 |
| kPhonetic | 525 684 |
| kRSAdobe_Japan1_6 | C+1773+48.3.5 C+1773+116.5.3 V+13735+48.3.5 V+13735+116.5.3 |
| kRSUnicode | 116.3 |
| kSBGY | 027.25 342.34 |
| kSMSZD2003Index | 490.02 190.13 |
| kSMSZD2003Readings | kōng粵hung1 kòng粵hung1 |
| kTaiwanTelegraph | 4500 |
| kTang | *kung kùng |
| kTGHZ2013 | 197.140:kōng 198.060:kòng |
| kTotalStrokes | 8 |
| kUnihanCore2020 | GHJKMPT |
| kVietnamese | không |
| kVietnameseNumeric | 0 |
| kXerox | 242:176 |
| kXHC1983 | 0645.110:kōng 0648.080:kòng |