The /ɔɪ/ diphthong is a combination of the vowel sounds /ɔ/ and /ɪ/. It begins with an open-mid back rounded vowel /ɔ/ and glides into a near-close near-front unrounded vowel /ɪ/. This diphthong is found in words like "boy" and "coin."
Phonetic Description:
- /ɔ/ as
in "thought"
- /ɪ/ as
in "kit"
When
these sounds are combined, they form the /ɔɪ/ diphthong, as in the word
"boy" (/bɔɪ/).
Pronunciation Tips
- Start
with /ɔ/:
Begin by positioning your tongue for the /ɔ/ sound, with the tongue in the
mid-back part of your mouth and lips rounded.
- Glide
to /ɪ/:
Move your tongue towards the /ɪ/ position, which is a near-close,
near-front position. The lips should become unrounded.
- Smooth
Transition:
Ensure a smooth transition between the two sounds, creating a seamless
glide from /ɔ/ to /ɪ/.
Examples of Words with /ɔɪ/
To
understand the /ɔɪ/ diphthong better, let's look at various words of different
lengths containing this diphthong. Pay attention to their phonetic
transcriptions.
·
annoying
(/əˈnɔɪɪŋ/)
·
avoid
(/əˈvɔɪd/)
·
boy
(/bɔɪ/)
·
boil
(/bɔɪl/)
·
broil
(/brɔɪl/)
·
choice
(/tʃɔɪs/)
·
cloister
(/ˈklɔɪstə/)
·
coil
(/kɔɪl/)
·
coin
(/kɔɪn/)
·
disjoint
(/dɪsˈdʒɔɪnt/)
·
enjoy
(/ɪnˈdʒɔɪ/)
·
enjoying
(/ɪnˈdʒɔɪɪŋ/)
·
employ
(/ɪmˈplɔɪ/)
·
foil
(/fɔɪl/)
·
hoist
(/hɔɪst/)
·
join
(/dʒɔɪn/)
·
joy
(/dʒɔɪ/)
·
joyful
(/ˈdʒɔɪfəl/)
·
loyal
(/ˈlɔɪəl/)
·
moist
(/mɔɪst/)
·
noisy
(/ˈnɔɪzi/)
·
oil
(/ɔɪl/)
·
ointment
(/ˈɔɪntmənt/)
·
oyster
(/ˈɔɪstə/)
·
overjoyed
(/ˌəʊvəˈdʒɔɪd/)
·
ploy
(/plɔɪ/)
·
point
(/pɔɪnt/)
·
poison
(/ˈpɔɪzən/)
·
rejoice
(/rɪˈdʒɔɪs/)
·
roy
(/rɔɪ/)
·
royal
(/ˈrɔɪəl/)
·
soy
(/sɔɪ/)
·
spoil
(/spɔɪl/)
·
spoiling
(/ˈspɔɪlɪŋ/)
·
spoilment
(/ˈspɔɪlmənt/)
·
tinfoil
(/ˈtɪnˌfɔɪl/)
·
toil
(/tɔɪl/)
·
toilet
(/ˈtɔɪlɪt/)
·
toy
(/tɔɪ/)
·
troy
(/trɔɪ/)
·
turmoil
(/ˈtɜːmɔɪl/)
·
uncoil
(/ʌnˈkɔɪl/)
·
voice
(/vɔɪs/)
·
voicing
(/ˈvɔɪsɪŋ/)
·
void
(/vɔɪd/)
·
voyage
(/ˈvɔɪɪdʒ/)
·
voyaging
(/ˈvɔɪɪdʒɪŋ/)
·
waypoint
(/ˈweɪpɔɪnt/)
·
wildcatting
(/ˈwɪldˌkætɪŋ/)
·
yoink
(/jɔɪŋk/)
Practice Exercises
Exercise 1: Minimal Pairs
Minimal
pairs are words that differ by only one phoneme. They are helpful for
understanding the subtle differences between sounds. Below are minimal pairs
focusing on the /ɔɪ/ diphthong.
- boy
(/bɔɪ/) - bay (/beɪ/)
- toy
(/tɔɪ/) - tie (/taɪ/)
- coin
(/kɔɪn/) - cane (/keɪn/)
- voice (/vɔɪs/)
- Vase (/veɪs/)
Exercise 2: Fill in the Blanks
Complete
the sentences with words containing the /ɔɪ/ diphthong. Use the context of the
sentence to guide you.
- The
young ____ (boy) played with his new ____. (toy)
- She
made a good ____ (choice) and decided to ____ (join) the club.
- The
mechanic checked the car's ____ (oil) level before the journey.
- His
deep ____ (voice) was comforting to hear.
Exercise 3: Sentence Practice
Read
the following sentences aloud, paying special attention to the /ɔɪ/ diphthong
in each word.
- "The
boy found a coin under the toy."
- "She
has a beautiful voice that brings joy to all."
- "They
decided to rejoice after hearing the good news."
- "The
annoying noise kept everyone awake."
Conclusion
Mastering
the /ɔɪ/ diphthong is essential for clear and accurate English pronunciation.
By practising with various words and sentences, students can become more
confident in their speaking abilities. Remember to listen carefully to the
sounds and make a smooth transition between the vowel sounds in the diphthong.