U+043E "о" Cyrillic Small Letter O Unicode Character

U+043E "о" Cyrillic Small Letter O is a grapheme used in the Cyrillic scripts for languages such as Russian, Ukrainian, Bulgarian, and Serbian, where it represents the vowel sound /o/ in most contexts. Its visual form is nearly identical to the Latin lowercase letter "o," which can cause confusion in digital text processing and font rendering, a phenomenon known as homoglyph conflict. In the Unicode standard, this character belongs to the Cyrillic block and occupies the codepoint U+043E, serving as the lowercase counterpart to the uppercase Cyrillic letter О at U+041E.

General Properties

Code Point	U+043E
Version Added	1.1
Name	Cyrillic Small Letter O
Block	Cyrillic
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	о
HTML Hex Encoding	о
UTF-8 Encoding	0xD0 0xBE
UTF-16 Encoding	0x043E
UTF-32 Encoding	0x0000043E
C/C++/Java Escape	\u043e

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	Alphabetic
East Asian Width	Ambiguous
Lowercase	Yes
Simple Uppercase Code Point	"О" U+041E Cyrillic Capital Letter O
Simple Titlecase Code Point	"О" U+041E Cyrillic Capital Letter O
Uppercase Code Point	"О" U+041E Cyrillic Capital Letter O
Titlecase Code Point	"О" U+041E Cyrillic Capital Letter O
Cased	Yes
Changes When Casemapped	Yes
Changes When Titlecased	Yes
Changes When Uppercased	Yes
Script	Cyrillic
Script Extensions	Cyrillic
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Lower