Pronunciation Of Diphthong ‘aɪ’

Diphthongs Pronunciation

Pronunciation Of Diphthong ‘aɪ’


(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, we’re going to learn how to pronounce the aɪ=ai as in ‘buy’ diphthong.

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

  1. In aɪ=ai diphthong, the first position- the jaw is more dropped than in the second position. Aɪ=ai
  2. The back of the tongue stretches up a little bit, aɪ=ai
  • As the mouth moves into the second position, the jaw drops less as the front part of the tongue arches up towards the roof of the mouth, aɪ=ai
  1. For both the beginning and the end of this diphthong the tongue tip touches the back of the bottom front teeth. Aɪ=ai
  2. Now try to speak ‘aɪ=ai’ and feel tongue positions with basic understanding.
  3. In slow motion where you can really feel the front part of the tongue arching up, aɪ=ai
  • The jaw drops and the front part of the tongue stays down with the tip touching the back of the bottom front teeth, aɪ=ai
  • Immediately, the tongue moves into the second position.
  1. The top front arching up towards the roof of the mouth. Aɪ=ai
  2. As the tongue arches up there’s less jaw drop, aɪ=ai
  3. Here’s. the word, “high=[haɪ]”
  • Jaw drops with the front of the tongue down
  • Then the jaw lifts as the front of the tongue arches towards the roof of the mouth, “high=[haɪ]”
  • In a stressed syllable, the ‘aɪ=ai’ diphthong curves up then down, “high=[haɪ]” aɪ=ai
  1. In an unstressed syllable, it’s lower & flatter and pitch as well as quicker and quieter as, aɪ=ai.
  • The diphthong is unstressed and as in the word “idea=[ai’di ə]”, aɪ=ai.
  • Let’s feel this word- at this “idea=[ai’di ə]” word
  • The jaw drops but just a little bit less than it would in a stressed syllable,
  • Then the tongue arches up towards the roof of the mouth before the tip goes to the roof of the mouth for the d, “idea=[ai’di ə]”,
  1. The aɪ=ai diphthong stressed in hi=[haɪ], aɪ=ai
  • The ‘aɪ=ai’ diphthong unstressed in “idea=[ai’di ə]”, aɪ=ai


Example words,

Repeat them for better understanding-

Exercise=[‘ɛk səɹ,saɪz], (Stressed)

Wine=[waɪn], (Stressed)

Bright=[bɹaɪt], (Stressed)

Guy=[gaɪ], (Stressed)

Allies=[‘æl aɪz], (Unstressed)

Sky=[skaɪ], (Stressed)


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What is IPA (International Phonetic Alphabet

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