Pronunciation Of Diphthong “oʊ“

Diphthongs Pronunciation

(Also Read Vowel in IPA (International Phonetic Alphabet) like- Pronunciation Of Vowel “ɜ“)

Understanding of Pronunciation of Vowel, Pronunciation of Consonants & Pronunciation of Diphthong is very important for being healthy in English, especially in English Speaking. Wrong pronunciation can change the meaning of a sentence or situation for which the particular word is used. Generally, beginner of any language crams Vocabulary but without clear and right pronunciation or wrong pronunciation, meaning or sense of the sentence can differ for other people. That’s why pronunciation plays a major role in language learning.

In this American English pronunciation Article section, we’re going to learn how to pronounce the ‘oʊ=oh’ as in ‘No’ diphthong.

Diphthongs are a combination of two sounds. They have a starting position and an ending position.

  • The jaw drops for the beginning position, tongue shifts back a little bit.
  • The lips may start relaxed or may start rounding right from the beginning.
  • After dropping the jaw, immediately start moving into the ending position.
  • The lips round and the back part of the tongue stretches up.
  • Focus on the movement of the jaw and the lip rounding.
  • Let’s feel this sound up close and in slow motion. ‘oʊ=oh’
  • Jaw drop for the first position, and rounded lips for the second.
  • The word ‘slow=[sloʊ]’.
  • Notice how the lips are not relaxed in the first position of this diphthong, with the jaw drop.
  • They’re flared, which does not affect the sound, as they prepare to round for the ending position.
  • Rounded lips.
  • In a stressed syllable, the ‘oʊ=oh’ diphthong curves up then down. Slow, ‘oʊ=oh’.
  • In an unstressed syllable, it’s lower and flatter in pitch, as well as quieter and quicker, ‘oʊ=oh’.
  • The diphthong is unstressed in the word ‘okay=[oʊ’kəɪ]’, ‘oʊ=oh’.
  • Let’s feel the word ‘okay’.
  • The jaw drops, but not quite as much as it did on the stressed syllable of ‘slow’.
  • The lips begin to round for the transition into the ending position.
  • The lips rounds, but not quite as much as for the stressed ‘oʊ=oh’ in ‘slow’.
  • Here we compare the first position of the stressed ‘oʊ=oh’ with the unstressed version.
  • Less jaw drops for the unstressed version.
  • Here, the second position. You can feel that for the stressed ‘oʊ=oh’, on top, the lips round more than they do in the unstressed version.
  • Generally, the unstressed version of a vowel or diphthong is more relaxed and often doesn’t take the full mouth position,
  • In this case, less jaw drops and less lip rounding.
  • This is because we don’t take as much time for unstressed syllables, they’re shorter,
  • So we simplify the mouth movements.
  • The ‘oʊ=oh’ diphthong, stressed: slow, ‘oʊ=oh’
  • The unstressed: okay, ‘oʊ=oh’

Example words.


Tomorrow=[tə’mɔɹ oʊ],


Window=[‘wɪn doʊ],


Social=[‘sʊ ʃəl].


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