diphthong

Part of speech: adjective

Diphthongal.

Part of speech: noun

The union of two vowels in one sound.

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Usage examples "diphthong":

  1. To separate two vowels which would otherwise form a diphthong. - "1001 Questions and Answers on Orthography and Reading", B. A. Hathaway.
  2. 5. What is a diphthong? - "The Grammar of English Grammars", Goold Brown.
  3. 7. What is an improper diphthong? - "The Grammar of English Grammars", Goold Brown.