Front | Central | Back | ||||||
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C l o s e |
H i g h |
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M i d |
M i d |
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O p e n |
L o w |
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Unrounded | Rounded | Unrounded | Half rounded | Rounded | Unrounded | Rounded |
The tongue positons are close to the roof of the oral cavity, middle, and with the mouth fully open. Alternatively they are called high, mid, and low.
The vowel are felt to be pronounced at the front of the mouth, the center or back of the oral cavity. Compare "peat" [pi:t] and "boot" [bu:t].
The left column of each of the 3 sections (front, central, back) is pronounced with unrounded lips. Likewise, the right column of each three sections is pronounced with the lips rounded.
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