U+5509 "唉" CJK Unified Ideograph-# Unicode Character
Unicode Version 17.0
唉
U+5509 "唉" CJK Unified Ideograph-# is a Chinese character that primarily functions as an interjection, commonly used to express a range of emotions such as sighing, regret, frustration, or gentle agreement, depending on context and tone. It is formed with the mouth radical on the left and the phonetic component "矣" on the right, and its pronunciation varies between "āi" for a sigh or exclamation and "ài" for a response of acknowledgment or displeasure in Mandarin. In written and spoken Chinese, "唉" often appears in dialogue to convey a speaker's emotional state, making it a versatile and frequently used character in both classical and modern texts.
General Properties
| Code Point | U+5509 |
| 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 | 唉 |
| HTML Hex Encoding | 唉 |
| UTF-8 Encoding | 0xE5 0x94 0x89 |
| UTF-16 Encoding | 0x5509 |
| UTF-32 Encoding | 0x00005509 |
| C/C++/Java Escape | \u5509 |
Unicode Properties
Unihan Properties
| kBigFive | ADFC |
| kCCCII | 213642 |
| kCNS1986 | 1-545F |
| kCNS1992 | 1-545F |
| kCangjie | RIOK |
| kCantonese | aai1 |
| kCihaiT | 276.405 |
| kCowles | 32 |
| kDaeJaweon | 0411.120 |
| kDefinition | alas, exclamation of surprise or pain |
| kEACC | 213642 |
| kFanqie | 烏開 於駭 |
| kFenn | 477F |
| kFennIndex | 1.08 2.04 |
| kFourCornerCode | 6303.4 |
| kGB0 | 1606 |
| kGB1 | 1606 |
| kGradeLevel | 4 |
| kGSR | 0938a |
| kHangul | 애:1N |
| kHanYu | 10635.060 |
| kHanyuPinyin | 10635.060:āi,ǎi,ài |
| kHKGlyph | 0592 |
| kIICore | AGTHM |
| kIRGDaeJaweon | 0411.120 |
| kIRGHanyuDaZidian | 10635.060 |
| kIRGKangXi | 0192.040 |
| kIRG_GSource | G0-3026 |
| kIRG_HSource | HB1-ADFC |
| kIRG_JSource | J14-237E |
| kIRG_KPSource | KP1-39E2 |
| kIRG_KSource | K1-6655 |
| kIRG_TSource | T1-545F |
| kIRG_VSource | V0-3158 |
| kJapanese | アイ キ カイ イ あくび おくび ああ |
| kKoreanName | 2015 |
| kTGH | 2013:1916 |
| kJIS0213 | 2,03,94 |
| kJapaneseKun | AA AAOO IYAIYAKOTAERU |
| kJapaneseOn | KAI KI AI I |
| kJis1 | 2141 |
| kKangXi | 0192.040 |
| kKarlgren | 183 |
| kKorean | AY |
| kMainlandTelegraph | 0780 |
| kMandarin | āi |
| kMatthews | 4 |
| kMeyerWempe | 25 2143 |
| kMojiJoho | MJ008317 |
| kMorohashi | 03701 |
| kPhonetic | 1549A |
| kRSAdobe_Japan1_6 | C+17366+30.3.7 |
| kRSUnicode | 30.7 |
| kSBGY | 099.07 271.36 |
| kSemanticVariant | U+6B38<kFenn |
| kSMSZD2003Index | 104.10 |
| kSMSZD2003Readings | āi粵aai1 ài粵aai3 |
| kSpecializedSemanticVariant | U+6B38<kMeyerWempe |
| kTaiwanTelegraph | 0780 |
| kTGHZ2013 | 002.010:āi 002.140:ài |
| kTotalStrokes | 10 |
| kUnihanCore2020 | GHMT |
| kVietnamese | hãy |
| kXerox | 247:062 |
| kXHC1983 | 0003.050:āi 0004.100:ài |