these slide gives simple idea on Diphthong. we all know that a sound formed by the combination of two vowels in a single syllable, in which the sound begins as one vowel and moves towards another is called diphthong.To pronounce English words correctly, one must have sheer knowledge on diphthong.

1. DIPHTHONG

2. INTRODUCTION
Di two
Thong tongue
Combination of two vowels in a single
syllable.
Known as gliding vowels.

3. DIPHTHONG SOUNDS
/ɪƏ/
Example : Ear , Deer.
/ƱƏ/
Example : Toward , Tour.
/eƏ/
Example : There , Care.

4. DIPHTHONG SOUNDS
/eɪ/
Exapmle : Maid , Pray.
/Ɔɪ/
Example : Boy , Enjoy.
/aɪ/
Example : Eye , Tie.

5. DIPHTHONG SOUNDS
/ƏƱ/
Example : Go , Slow.
/aƱ/
Example : Cow , Found.

7. DIPHTHONG SOUNDS
Of Eight Diphthongs –
Three Closing Diphthongs Glide Towards /ɪ/
Two Closing Diphthongs Glide Towards /Ʊ/
Three Centering Diphthongs Glide Towards /Ə/

8. CLOSING DIPHTHONGS
(5 SOUNDS)
• /eɪ/ : The lips are spread.
• /ɔɪ/ : The lips are open rounded at the beginning, change to
neutral towards the end.
• /aɪ/ : The lips have a neutral position at the beginning, but they
gradually change to a loosely spread position.
• /əʊ/ : The lips are neutral at the beginning of the glide, become
rounded towards the end.
• /aʊ/ : The lips are neutral at the beginning of the glide, become
rounded towards the end.

9. CENTERING DIPHTHONGS
(3 SOUNDS)
/ɪə/ : The lips are neutral throughout.
/Ʊə/ : The lips are loosely rounded at the beginning of the
glide and neutral at the end.
/eə/ : The lips are neutrally open throughout.