ʙ (small capital B) is an extended Latin letter used as the lowercase form of B in a number of alphabets during romanization. It is also used in the International Phonetic Alphabet to denote a voiced bilabial trill. In the Uralic Phonetic Alphabet, it denotes a semi-voiced bilabial plosive.

Use

To avoid the appearance of a homoglyph with the letter I with bowl (not encoded in Unicode, but approximated with the Cyrillic soft sign ⟨Ь ь⟩), during Soviet latinisation, the alphabets of the Sámi, Abaza, Komi, Tsakhur, Azerbaijani, Kurdish and Bashkir languages, as well as the New Turkic alphabet, the Unified Northern Alphabet and the project of reform of the Udmurt script used ⟨ʙ⟩ as the lowercase form of the letter ⟨B⟩. The letter also was used in the Adyghe Latin alphabet and is still used in the Bukharian Latin alphabet, though neither contains homoglyphs being avoided.

In the Middle Ages, the author of the First Icelandic Grammatical Treatise used ⟨ʙ⟩ to transcribe a geminated B.

In the International Phonetic Alphabet, ⟨ʙ⟩ represents a voiced bilabial trill. The symbol was adopted following the 1989 Kiel Convention.

In the Uralic Phonetic Alphabet, ⟨ʙ⟩ represents a partially devoiced bilabial plosive, approximately [b̥] in the IPA; ⟨b⟩ and ⟨p⟩ represent fully voiced and fully devoiced bilabial plosives, respectively, in both systems.

Unicode

The letter has been present since the very first version of the Unicode standard and is located in the IPA Extensions block as code point U+0299ʙLATIN LETTER SMALL CAPITAL B.

Computing codes

Character information
Previewʙ
Unicode nameLATIN LETTER SMALL CAPITAL B
Encodingsdecimalhex
Unicode665U+0299
UTF-8202 153CA 99
Numeric character referenceʙʙ

See also