The open central unrounded vowel, or low central unrounded vowel, is a type of vowel sound, used in many spoken languages.

The mid central vowel (also known as schwa) is a type of vowel sound, used in some spoken languages.

The close central unrounded vowel, or high central unrounded vowel, is a type of vowel sound used in some languages.

The near-open central vowel, or near-low central vowel, is a type of vowel sound, used in some spoken languages.

The open-mid central unrounded vowel, or low-mid central unrounded vowel, is a type of vowel sound, used in some spoken languages.

The close-mid central unrounded vowel, or high-mid central unrounded vowel, is a type of vowel sound used in some spoken languages.