U+1843 "ᡃ" Mongolian Letter Todo Long Vowel Sign Unicode Character

Unicode Version 17.0

U+1843 "ᡃ" Mongolian Letter Todo Long Vowel Sign is a diacritical mark used in the Todo script, a variant of the traditional Mongolian alphabet historically employed by the Oirat and Kalmyk peoples. Its primary function is to extend the length of a preceding vowel in a syllable, altering pronunciation for linguistic precision in representing long vowel sounds within Todo Mongolian orthography. This character belongs to the Unicode block for Mongolian, where it serves as a modifier rather than an independent letter, and it is typically written as a thin, vertical line attached to the upper right of a base character. The Todo script itself was developed in the 17th century to more accurately transcribe spoken Oirat, and this vowel sign remains a key component in preserving the phonetic distinctions of that language in digital text.

General Properties

Code Point U+1843
Version Added 3.0
Name Mongolian Letter Todo Long Vowel Sign
Block Mongolian
General Category Modifier Letter
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right

Encodings

HTML Decimal Encoding ᡃ
HTML Hex Encoding ᡃ
UTF-8 Encoding 0xE1 0xA1 0x83
UTF-16 Encoding 0x1843
UTF-32 Encoding 0x00001843
C/C++/Java Escape \u1843

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
NFKC Quick Check Yes
NFKD Quick Check Yes
Numeric Type None
Numeric Value NaN
Joining Type Dual Joining
Line Break Alphabetic
Case Ignorable Yes
Script Mongolian
Script Extensions Mongolian
Indic Syllabic Category Other
ID Start Yes
XID Start Yes
ID Continue Yes
XID Continue Yes
Extender Yes
Alphabetic Yes
Vertical Orientation Rotated
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Alphabetic letter
Sentence Break OLetter