U+3157 "ㅗ" Hangul Letter O Unicode Character

Unicode Version 17.0

U+3157 "ㅗ" Hangul Letter O is a vowel symbol in the Korean writing system known as Hangul, where it represents the mid back rounded vowel sound, similar to the 'o' in the English word "go". It is one of the fundamental building blocks of the Korean alphabet, classified as a yang vowel due to its association with bright or positive phonetic qualities in traditional Korean vowel harmony. In modern usage, this character appears both as an independent letter and as a component within composite syllables, where it is typically positioned at the top of a syllable block when combined with a consonant. Its distinctive shape, featuring a horizontal line with a vertical stroke extending downward on the right side, makes it easily recognizable in written Korean text.

General Properties

Code Point U+3157
Version Added 1.1
Name Hangul Letter O
Block Hangul Compatibility Jamo
General Category Other Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Compat
Decomposition Mapping "ᅩ" U+1169 Hangul Jungseong O

Encodings

HTML Decimal Encoding ㅗ
HTML Hex Encoding ㅗ
UTF-8 Encoding 0xE3 0x85 0x97
UTF-16 Encoding 0x3157
UTF-32 Encoding 0x00003157
C/C++/Java Escape \u3157

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Ideographic
East Asian Width Wide
Changes When NFKC Casefolded Yes
NFKC Casefold "ᅩ" U+1169 Hangul Jungseong O
NFKC Simple Casefold "ᅩ" U+1169 Hangul Jungseong O
Script Hangul
Script Extensions Hangul
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 Alphabetic letter
Sentence Break OLetter