tetraphthong

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noun

A monosyllabic vowel combination consisting of two diphthongs, or a semivowel followed by a triphthong.

“Gottscheerish has four tetraphthongs: /i̯oai/, /i̯oːai/, /i̯uai/, and /i̯uːai/.”

Scrabble 21
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Meanings

nountetraphthong (plural tetraphthongs)

plural tetraphthongs

  1. A monosyllabic vowel combination consisting of two diphthongs, or a semivowel followed by a triphthong.

    Gottscheerish has four tetraphthongs: /i̯oai/, /i̯oːai/, /i̯uai/, and /i̯uːai/.

Cite this entry
APA

tetraphthong. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/tetraphthong

MLA

“tetraphthong.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/tetraphthong. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “tetraphthong,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/tetraphthong.

Source: tetraphthong on Wiktionary, CC BY-SA 4.0.