Also known as gliding vowel
thumb|American English pronunciation of "no highway cowboys" , showing five diphthongs:
A diphthong is a single vowel sound in speech that actually contains two different vowel sounds blended together, like the "ow" sound in "no" or the "oy" sound in "boy." Diphthongs matter because they're a key feature of how languages like English are actually pronounced, and understanding them helps explain why words sound the way they do.
AI-generated from the Wikipedia summary — may contain errors.
thumb|American English pronunciation of "no highway cowboys" , showing five diphthongs:
A diphthong ( ), also known as a gliding vowel or a vowel glide, is a combination of two adjacent vowel sounds within the same syllable. Technically, a diphthong is a vowel with two different targets: that is, the tongue (and/or other parts of the speech apparatus) moves during the pronunciation of the vowel. In most varieties of English, the phrase "no highway cowboys" ( ) has five distinct diphthongs, one in every syllable.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).