What is the /ɔɪ/ Sound?
First, let's look at a few examples of words with the English /ɔɪ/ sound:
- oil
- oiled
- coin
- voice
- enjoy
- boy
According to Baruch College's Tools for Clear Speech, the /ɔɪ/ sound is made by doing the following:
"/ɔɪ/ is a diphthong, which is like a combination of two different vowel sounds. To begin, place your tongue at mid-low height in your mouth, shifted toward the back, to say /o/. Round your lips into an “o” shape as you do so. Then, as you vibrate your vocal cords, lift your tongue high in the mouth and shift it toward the front, to say /ɪ/. The transition between these two positions should be very quick."
If you need more help articulating the /ɔɪ/ sound, check out this video to learn the correct tongue and mouth placement.
Practicing the /ɔɪ/ Sound
Everything you need to pronounce the English /ɔɪ/ sound correctly is on this page. Just follow the instructions.
What do you have to do?
Practice for 5 minutes a day for 7 days.
That’s it.
Your goal is to pronounce the /ɔɪ/ sound clearly and easily by the end of day 7.
Let’s do it!
This guide to the American English /ɔɪ/ sound is full of useful information. Click the link below to jump to the part you are looking for:
- Day 1 of the /ɔɪ/ sound
- Day 2 of the /ɔɪ/ sound
- Day 3 of the /ɔɪ/ sound
- Day 4 of the /ɔɪ/ sound
- Day 5 of the /ɔɪ/ sound
- Day 6 of the /ɔɪ/ sound
- Day 7 of the /ɔɪ/ sound
- Additional /ɔɪ/ sound resources
- PDF download of the /ɔɪ/ sound
Day 1: The /ɔɪ/ Sound
If you are ready, let’s start with the practice for day one.
It’s pretty simple.
Watch the video and follow along.
Listen and repeat.
🔊 Click here to listen to the audio version
Minimal Pairs
Your Goal: To feel the difference between the /ɔɪ/ sound and similar sounds like /eɪ/.
- bay - boy
- sail - soil
- tail - toil
- cane - coin
Vowel Collection
Your Goal: To practice the /ɔɪ/ sound while also improving your pronunciation of the English vowel sounds.
- join - gin - Jane - June
- choice - chase - cheese
Syllable Stress Collection
Your Goal: To practice the /ɔɪ/ sound while also developing a better understanding of proper syllable stress.
- oyster
- ointment
- unemployment
- annoy
Reduced Sounds Collection
Your Goal: To practice the /ɔɪ/ sound while also working on linking words and phrases together.
- I should not have eaten the oysters.
- Could you get me the ointment, please?
Tongue Twister Collection
Your Goal: To practice the /ɔɪ/ sound while improving your speaking speed and enunciation.
- Annoying soil spoils and destroys.
- Tom joined his noisy friends.
Day 2: The /ɔɪ/ Sound
Just like day one, except simpler.
Watch the video and follow along.
Listen and repeat.
🔊 Click here to listen to the audio version
Minimal Pairs
Your Goal: To feel the difference between the /ɔɪ/ sound and similar sounds like /eɪ/.
- chase - choice
- paint - point
- decay - decoy
- bale - boil
Vowel Collection
Your Goal: To practice the /ɔɪ/ sound while also improving your pronunciation of the English vowel sounds.
- point - paint - pent - pant
- soil - sail - seal - sole
Syllable Stress Collection
Your Goal: To practice the /ɔɪ/ sound while also developing a better understanding of proper syllable stress.
- homeboy
- cowboy
- enjoy
- heroic
Reduced Sounds Collection
Your Goal: To practice the /ɔɪ/ sound while also working on linking words and phrases together.
- Tell her your opinion on unemployment.
- He must have been an annoying boyfriend.
Tongue Twister Collection
Your Goal: To practice the /ɔɪ/ sound while improving your speaking speed and enunciation.
- Boy of Troy your coy ploy was a joy.
- The lawyer’s joyful noise. The lawyer’s joyful noise.
Day 3: The /ɔɪ/ Sound
Today will be the last day you only listen and repeat.
Tomorrow, you will have to start to speak.
But let’s focus on today.
Just like yesterday, watch the video and follow along.
Listen and repeat.
🔊 Click here to listen to the audio version
Minimal Pairs
Your Goal: To feel the difference between the /ɔɪ/ sound and similar sounds like /b/ or /f/.
- faced - foist
- fail - foil
- haste - hoist
- Jane - join
Vowel Collection
Your Goal: To practice the /ɔɪ/ sound while also improving your pronunciation of the English vowel sounds.
- toy - tear - too - tour
- coin - cane - keen - cone
Syllable Stress Collection
Your Goal: To practice the /ɔɪ/ sound while also developing a better understanding of proper syllable stress.
- invoice
- loyalty
- destroying
- noisy
Reduced Sounds Collection
Your Goal: To practice the /ɔɪ/ sound while also working on linking words and phrases together.
- How do you create the invoice?
- I have got to see the movie ‘Troy’ before they spoil it!
Tongue Twister Collection
Your Goal: To practice the /ɔɪ/ sound while improving your speaking speed and enunciation.
- Noisy poison, noisy poison, noisy poison.
- Oily oysters spoil in oil.
Day 4: The /ɔɪ/ Sound
Time to speak.
You will notice that these are the words, phrases, and sentences you repeated on day one.
Today, your job is different.
Open up a Google Doc, enable voice typing and speak.
Watch the video to see how it works.
- bay - boy
- sail - soil
- tail - toil
- cane - coin
- join - gin - Jane - June
- choice - chase - cheese
- oyster
- ointment
- unemployment
- annoy
- I should not have eaten the oysters.
- Could you get me the ointment, please?
- Annoying soil spoils and destroys.
- Tom joined his noisy friends.
Day 5: The /ɔɪ/ Sound
Let’s revisit the words, phrases, and sentences you practiced on day two.
Just like yesterday, open up a Google Doc, enable voice typing, and get ready to speak.
Let’s do it!
- chase - choice
- paint - point
- decay - decoy
- bale - boil
- point - paint - pent - pant
- soil - sail - seal - sole
- homeboy
- cowboy
- enjoy
- heroic
- Tell her your opinion on unemployment.
- He must have been an annoying boyfriend.
- Boy of Troy your coy ploy was a joy.
- The lawyer’s joyful noise. The lawyer’s joyful noise.
TIP*** Are there some words that the computer does not understand no matter how many times you say them? No worries, just skip it and move on. No one is perfect.
Day 6: The /ɔɪ/ Sound
You are so close to day 7.
Be proud that you have made it this far :)
In today’s lesson, let’s circle back to the words, phrases, and sentences you repeated on day three and practice saying them aloud.
- faced - foist
- fail - foil
- haste - hoist
- Jane - join
- toy - tear - too - tour
- coin - cane - keen - cone
- invoice
- loyalty
- destroying
- noisy
- How do you create the invoice?
- I have got to see the movie ‘Troy’ before they spoil it!
- Noisy poison, noisy poison, noisy poison.
- Oily oysters spoil in oil.
Day 7: The /ɔɪ/ Sound
Congratulations!!!
You have made it to the very last day of this /ɔɪ/ sound practice course.
Do you feel like your pronunciation of this sound is improving?
Let’s finish with a simple, but challenging exercise.
Just like you did on days 4, 5, and 6, open up a Google Doc and enable voice typing.
This time, try to get the technology to recognize these six tongue twisters.
- Annoying soil spoils and destroys.
- Tom joined his noisy friends.
- Boy of Troy your coy ploy was a joy.
- The lawyer’s joyful noise. The lawyer’s joyful noise.
- Noisy poison, noisy poison, noisy poison.
- Oily oysters spoil in oil.
Now, turn voice typing off and try to say each tongue twister as fast as possible.
Watch the video to learn how to go through this exercise.
Additional Resources: The /ɔɪ/ Sound
Words with the /ɔɪ/ sound
| Beginning | Middle | End |
| oil | coin | enjoy |
| oily | voice | employ |
| oiled | foil | disemploy |
| oyster | noisy | boy |
| ointment | point | destroy |
| oyster | toy | |
| coin | joy | |
| soil | annoy | |
| join | alloy | |
| boil | deploy | |
| poison | cowboy | |
| choice | schoolboy | |
| toilet | misemploy | |
| heroic | destroy | |
| roister | viceroy | |
| spoiler | overjoy | |
| steroid | envoy | |
| exploit | convoy | |
| invoice | homeboy | |
| choice | troy | |
| noise | bellboy | |
| point | killjoy | |
| annoying | soy | |
| unemployment | ||
| boyfriend | ||
| poison | ||
| devoiced | ||
| loyal | ||
| loyalty | ||
| destroying |
Minimal Pair Collection
Minimal pair /eɪ/ & /ɔɪ/
bay - boy
sail - soil
tail - toil
cane - coin
chase - choice
paint - point
decay - decoy
bale - boil
faced - foist
fail - foil
haste - hoist
Jane - join
Vowel Collection
join - gin - Jane - June
choice - chase - cheese
point - paint - pent - pant
soil - sail - seal - sole
toy - tear - too - tour
coin - cane - keen - cone
Syllable Stress Collection
- oyster
- ointment
- unemployment
- annoy
- homeboy
- cowboy
- enjoy
- heroic
- invoice
- loyalty
- destroying
- noisy
Reduced Sounds Collection
- I should not have eaten the oysters.
- Could you get me the ointment, please?
- Tell her your opinion on unemployment.
- He must have been an annoying boyfriend.
- How do you create the invoice?
- I have got to see the movie ‘Troy’ before they spoil it!
Tongue Twister Collection
- Annoying soil spoils and destroys.
- Tom joined his noisy friends.
- Boy of Troy your coy ploy was a joy.
- The lawyer’s joyful noise. The lawyer’s joyful noise.
- Noisy poison, noisy poison, noisy poison.
- Oily oysters spoil in oil.
Additional Resources
- Tools for Clear Speech sound /ɔɪ/ profile
- Rachel’s English Video on the /ɔɪ/ sound
- TEFLpedia /ɔɪ/ sound
Additional Activities for All Sounds
Practice Three Words
Answer the following question:
What do you like to do in your free time?
Pick one, two, or three words from the word bank and include them in your response. If it helps, you may write out the example sentences with the word in context first.
Youglish Research
Visit the Youglish website. Pick a word or phrase you would like to practice. Enter it into the Youglish search bar. Find three examples of the word or phrase in context to shadow.
Teacher Time
During your next English speaking practice session with a teacher or conversation partner, have a list of three to five words you would like to use. Give yourself a point every time you use the word correctly in context and it is understood. Aim to score 5 points within the first 10 minutes (so the rest of the time you focus just on communicating).
Voice Typing
Write out three sentences with challenging words or phrases. Use Google Docs or any other software with the ability to turn speech to text. Read these sentences aloud and check to see if your pronunciation is correct.
***There are a ton of possibilities. These are just a few ideas. Use the word bank, tongue twisters, example sentences, and other resources on this page to continue to work on this sound.
If you have any suggestions, let me know in the comments below. I read and respond to all of them.
Download the PDF version of this 7-day mini-course.
Plus the PDF-version of every single English sound for free.
