Latin alpha (majuscule: Ɑ, minuscule: ɑ), script a, or single-story a is a letter of the Latin alphabet based on one lowercase form of a, or on the Greek lowercase alpha (α).
Although |ɑ| is normally just an allograph of ⟨a⟩, there are instances in which the two letters are distinguished: In Cameroon languages, ⟨Ɑ ɑ⟩ must look like the classical lowercase Greek alpha to better differentiate it from the letter a in script form.
U+1D45 ᵅ MODIFIER LETTER SMALL ALPHA is used in the Uralic Phonetic Alphabet.
[7] U+AB30 ꬰ LATIN SMALL LETTER BARRED ALPHA is used in the Teuthonista phonetic transcription system.
[8] U+AB64 ꭤ LATIN SMALL LETTER INVERTED ALPHA is used in Americanist phonetic notation.