U+554A "啊" CJK Unified Ideograph-# Unicode Character

Unicode Version 17.0

U+554A "啊" CJK Unified Ideograph-# is a Chinese character that functions primarily as an interjection or a modal particle in Mandarin Chinese, used to express a range of emotions such as surprise, realization, excitement, or agreement depending on the tone applied. Its pronunciation typically corresponds to "ā," "á," "ǎ," or "à" in pinyin, with each tone shifting the intended emotional nuance. This character is widely used in everyday speech and writing, appearing frequently in conversational dialogue, informal texts, and literature to convey natural pauses or emotional emphasis. As part of the CJK Unified Ideographs block, it represents a fundamental component of the written Chinese language and is also present in other East Asian scripts like Japanese and Korean, where it carries similar expressive functions.

General Properties

Code Point U+554A
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 啊
HTML Hex Encoding 啊
UTF-8 Encoding 0xE5 0x95 0x8A
UTF-16 Encoding 0x554A
UTF-32 Encoding 0x0000554A
C/C++/Java Escape \u554a

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

kBigFive B0DA
kCCCII 21364C
kCNS1986 1-593F
kCNS1992 1-593F
kCangjie RNLR
kCantonese aa1
kCihaiT 280.605
kCowles 3094
kDaeJaweon 0416.050
kDefinition exclamatory particle
kEACC 21364C
kFanqie 烏何
kFennIndex 1.01
kFourCornerCode 6102.0
kGB0 1601
kGB1 1601
kGradeLevel 3
kHangul 아:N
kHanYu 10634.180
kHanyuPinlu a(1102) ā(404)
kHanyuPinyin 10634.180:è,ā,á,ǎ,à,a
kHKGlyph 0602
kIICore AGTHM
kIRGDaeJaweon 0416.050
kIRGHanyuDaZidian 10634.180
kIRGKangXi 0195.040
kIRG_GSource G0-3021
kIRG_HSource HB1-B0DA
kIRG_JSource J14-2425
kIRG_KSource K2-275D
kIRG_TSource T1-593F
kIRG_VSource V0-314D
kJapanese
kKoreanName 2015
kTGH 2013:1915
kJIS0213 2,04,05
kJapaneseKun KOE
kJapaneseOn A
kJis1 2157
kKangXi 0195.040
kKarlgren 1
kKorean A
kLau 2424
kMainlandTelegraph 0759
kMandarin a
kMatthews 2
kMeyerWempe 2140
kMojiJoho MJ008381
kMorohashi 03808
kPhonetic 3
kRSAdobe_Japan1_6 C+14391+30.3.8
kRSUnicode 30.8
kSMSZD2003Index 107.07
kSMSZD2003Readings ā粵aa1 á粵aa2 ǎ粵aa2 à粵aa3 a粵aa3
kSpecializedSemanticVariant U+963F<kFenn
kTGHZ2013 001.030:ā 001.060:á 001.070:ǎ 001.080:à 001.090:a
kTotalStrokes 10
kUnihanCore2020 GHMT
kVietnamese à
kXerox 243:376
kXHC1983 0002.010:ā 0002.050:á 0002.060:ǎ 0002.070:à 0002.080:a