A diphthong is a vowel sound with a deliberate glide. It is represented in phonetic transcription by a sequence of two elements (Symbols). The first element shows the position of the organs of speech at the beginning of the glide. The glide terminates on the second element.
A diphthong consists of a single syllable. That is, the vowel glide must be performed within one syllable. You must remember that the length and stress are concentrated on the first element of a diphthong. The second element is made less prominent.
The glide begins from /ɪ/ and moves towards /ə/
The lips are neutral.
eer – deer / dɪə/
ear – dear / dɪə/, fear / fɪə/
ere – here / hɪə/
eir – weired / wɪəd/
ier – fierce / fɪəs/
ea – idea / aɪdɪə/
ear / ɪə/
feared / fɪəd /
severe / sɪvɪə /
The glide begins from /ʊ/ and moves towards /ə/.
The lips are weakly rounded at the beginning of the glide and become neutrally spread.
oor – poor / pʊə/
ure – pure / pjʊə/, sure / ʃuə/
ur – curious / kjʊərɪəs/, during / dʊərɪŋ/
our – tour / tʊə/
ewer – fewer / fjʊə/
sure / ʃʊə /
fluent / flʊənt /
tourist / tʊərɪst /
>> Click here to watch the video on the /ʊə/ sound.
The glide begins in the half-open from the position /e/ and moves in the direction of /ə/.
The lips are neutral.
are – care / keə/, rare / reə/
air – fair / feə/, chair / tʃeə/
ear – bear / beə/, wear / weə/
ere – here / heə/, there / ðeə/
eir – their / ðeə/, heir / heə/
air / eə /
hair / heə /
rare / reə /
>> Click here to watch the video on the /eə/ sound.
The glide begins from /e/ slightly below the half-close position and moves in the directions of /ɪ/
The lips are spread.
a – late / leɪt/, game / geɪm/
ay – day / deɪ/, may / meɪ/
ai – aim / eɪm/, waist / weɪst/
ei – eight / eɪt/, vein / vein/
ey – they / ðeɪ/
ea – great / greɪt/, break / breɪk/
>> Click here to watch the video on the /eɪ/ sound.
The glide begins from /Ɔ:/ slightly below the half-close position and moves in the direction of /ɪ/
The lips are spread.
oy – boy / bɔɪ/, joy / dƷɔɪ/
oi – voice / vɔɪs/, point / pɔɪnt/
oil / ɔɪl /
coin / kɔɪn /
annoy / ənɔɪ /
ointment / ɔɪntmənt /
join / dƷɔɪn /
destroy / destrɔɪ /
>> Click here to watch the video on the /ɔɪ/ sound.
The glide begins from just above the open position /a:/ and moves towards /I/.
The lips are spread.
i – five / faɪv/, mine / maɪn/, file / faɪl/
u – buy / baɪ/, guy / gaɪ/
ie – tie / taɪ/, die / daɪ/
y – fly / flaɪ/
right / raɪt /
lie / laɪ /
fly / flaɪ /
>> Click here to watch the video on the /aɪ/ sound.
The glide begins at a central position / ə/ between half close and half-open. It then moves in the direction of /ʊ /
The lips are neutral for the first element and sounded for the second.
o – so / səʊ/, old / əʊld/, home / həʊm/
oa – road / rəʊd/, soap / səʊp/
oe – toe / təʊ/, foe / fəʊ/
ou – soul / səʊl/, though / ðəʊ /
ow – know / nəʊ/, blow / bləʊ/
old / əʊld /
go / gəʊ /
nose / nəʊz /
>> Click here to watch the video on the /əʊ/ sound.
The glide begins at a point between the back and front open position /a:/ and moves towards /ʊ/.
The lips change from a neutrally open to a weakly sounded position.
our – house / haʊs/
ow – cow / kaʊ/, brown / braʊn/
owl / aʊl /
loud / laʊd /
allow / əlaʊ /
>> Click here to watch the video on the /aʊ/ sound.