U+1E031 "𞀱" Modifier Letter Cyrillic Small Be Unicode Character

U+1E031 "𞀱" Modifier Letter Cyrillic Small Be is a diacritical or spacing modifier mark used in the extended Cyrillic script, specifically representing a small, superscript version of the Cyrillic letter Be (Б). Its primary function is to modify the phonetic value of a base character, often indicating a specific palatalization, labialization, or other subtle articulatory feature in scholarly transcriptions of Slavic or other languages that utilize the Cyrillic alphabet. This character was added to the Unicode Standard as part of the Cyrillic Extended-D block, enabling precise representation of historical and dialectal phonetic distinctions without requiring separate, dedicated letters for each modified sound.

General Properties

Code Point	U+1E031
Version Added	15.0
Name	Modifier Letter Cyrillic Small Be
Block	Cyrillic Extended-D
General Category	Modifier Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Super
Decomposition Mapping	"б" U+0431 Cyrillic Small Letter Be

Encodings

HTML Decimal Encoding	𞀱
HTML Hex Encoding	𞀱
UTF-8 Encoding	0xF0 0x9E 0x80 0xB1
UTF-16 Encoding	0xD838 0xDC31
UTF-32 Encoding	0x0001E031
C/C++/Java Escape	\ud838\udc31

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Lowercase	Yes
Other Lowercase	Yes
Case Ignorable	Yes
Cased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"б" U+0431 Cyrillic Small Letter Be
NFKC Simple Casefold	"б" U+0431 Cyrillic Small Letter Be
Script	Cyrillic
Script Extensions	Cyrillic
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Diacritic	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Lower