Open back unrounded vowel

Open back unrounded vowel
ɑ
IPA number	305
Audio sample
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Encoding
Entity (decimal)	ɑ
Unicode (hex)	U+0251
X-SAMPA	A
Braille
Image

IPA: Vowels
Front Central Back Close i y ɨ ʉ ɯ u Near-close ɪ ʏ ʊ Close-mid e ø ɘ ɵ ɤ o Mid e̞ ø̞ ə ɤ̞ o̞ Open-mid ɛ œ ɜ ɞ ʌ ɔ Near-open æ ɐ Open a ɶ ä ɑ ɒ
IPA help  audio full chart template Legend: unrounded • rounded

The open back unrounded vowel, or low back unrounded vowel,^[1] is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨ɑ⟩, and the equivalent X-SAMPA symbol is A. The letter ⟨ɑ⟩ is called script a because it lacks the extra hook on top of a printed letter a, which corresponds to a different vowel, the open front unrounded vowel. Script a, which has a full length linear stroke on its right, should not be confused with turned script a, ɒ, which has the linear stroke on its left and corresponds to a rounded version of this vowel, the open back rounded vowel.

In some languages (such as Azerbaijani, Estonian, Luxembourgish and Toda)^[2][3][4][5] there is the near-open back unrounded vowel (a sound between cardinal [ɑ] and [ʌ]), which can be transcribed in IPA with ⟨ɑ̝⟩ or ⟨ʌ̞⟩.