The Universal Atlas of Phonetic Evolution
Back to Matrix [a] → [oi] Edit this Data

[oi]→[a]Certainty: 2/5Commonality: 1/5

Diphthong oi to Open front unrounded vowel

Monophthongization of diphthong [oi] to open front unrounded vowel [a] through vowel merger with unrounding and lowering.

Phonetic Effects

Monophthongization, Unrounding, Lowering

Language Examples

[oi]→[a]— Vowel merger in certain varieties.
[oi]→[a]— Reduction in casual articulation.
[oi]→[a]— Extreme vowel shift in non-standard accents.

Related Transformations

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