Ƀ

B with stroke (majuscule: Ƀ, minuscule: ƀ) is a letter of the Latin alphabet, formed from B with the addition of a bar, which can be through either the ascender or the bowl. It is used as a phonetic symbol to represent to transcribe the sound [β].

⟨Ƀ⟩ is also a letter of the alphabets of the Jarai and Katu languages of Vietnam, and is used in standardized texts in Old Saxon as well as in reconstructed forms of Proto-Germanic

Unicode

The minuscule form has been present in Unicode since version 1 (1991), but the majuscule form was not added until version 5 (2006).

Character	Ƀ		ƀ
Unicode name	LATIN CAPITAL LETTER B WITH STROKE		LATIN SMALL LETTER B WITH STROKE
Encodings	decimal	hex	decimal	hex
Unicode	579	U+0243	384	U+0180
UTF-8	201 131	C9 83	198 128	C6 80
Numeric character reference	Ƀ	Ƀ	ƀ	ƀ

References

• Pullum, Geoffrey K.; Ladusaw, William A. (1996). Phonetic Symbol Guide. University of Chicago Press. p. 21. 

The ISO basic Latin alphabet
Aa	Bb	Cc	Dd	Ee	Ff	Gg	Hh	Ii	Jj	Kk	Ll	Mm	Nn	Oo	Pp	Qq	Rr	Ss	Tt	Uu	Vv	Ww	Xx	Yy	Zz
Letter B with diacritics
Ḃḃ	Ḅḅ	Ḇḇ	Ƀƀ	Ɓɓ	Ƃƃ	ᵬ	ᶀ
Letters using stroke sign ( ◌̵ )
Ⱥⱥ	Ƀƀ	Ȼȼ	Đđ	Ɇɇ	Ǥǥ	Ꞡꞡ	Ħħ	Ɨ ɨ	Ɉɉ	Ꝁꝁ	Ꞣꞣ	Łł	Ꞥꞥ	Øø	Ᵽᵽ	Ꝗꝗ	Ɍɍ	Ꞧꞧ	Ꞩꞩ	Ŧŧ	Ʉʉ	Ɏɏ	Ƶƶ	Ꝥꝥ
Related
Derivations Diacritics History ISO/IEC 646 List of letters Numerals Palaeography Punctuation Unicode