Open vowel

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Open vowel" – news · newspapers · books · scholar · JSTOR (April 2008) (Learn how and when to remove this message)

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

An open vowel is a vowel sound in which the tongue is positioned approximately as far as possible from the roof of the mouth. Open vowels are sometimes also called low vowels (in U.S. terminology ^[1]) in reference to the low position of the tongue.

In the context of the phonology of any particular language, a low vowel can be any vowel that is more open than a mid vowel. That is, open-mid vowels, near-open vowels, and open vowels can all be considered low vowels.

The open vowels with dedicated symbols in the International Phonetic Alphabet are:

• open front unrounded vowel [a]
• open front rounded vowel [ɶ]^[2]
• open back unrounded vowel [ɑ]
• open back rounded vowel [ɒ]

There also are central vowels that do not have dedicated symbols in the IPA:

• open central unrounded vowel [ä] or [ɐ̞] (commonly written [a] as if it were front)
• open central rounded vowel
  [ɒ̈]

There is no unambiguous way of transcribing the open central vowels (but see obsolete/nonstandard IPA

). The diaeresis indicates centralization, so ⟨ä⟩ could mean near-front and ⟨ɒ̈⟩ could mean near-back. However, in practice the diaeresis is assumed to mean central, while ⟨a̠⟩ and ⟨ɒ̟⟩ are used for the front and back articulations, respectively.

The extremely rare contrast between open front, central and back unrounded vowels has been reported to occur in the

See also

• Close vowel