How to pronounce “supervisory”
Supervisory is pronounced /ˌsuːpərˈvaɪzəriː/. It has 5 syllables, and the beat falls on the third one — vaɪ. Below: the syllable split, native audio in both accents, the mistake people actually make with this word, and every individual sound in it explained.
Syllables and stress
Split it into 5 beats. The highlighted syllable is the strong one: say it louder, longer and a touch higher in pitch, and let the others fall away. English is a stress-timed language, so getting vaɪ in the right place matters more to a listener than getting every vowel perfect.
Stress pattern ōoOoo — capital letters mark the stressed beats.
The common mispronunciation of “supervisory”
✗ Often said: /ˈsʌpərvɪsɔːriː/ — the spelling, read straight off the page.
✓ Actually: /ˌsuːpərˈvaɪzəriː/
Why the two come apart: the stress lands on the third syllable (“vaɪ”), not on the first one — putting the beat at the front is the mistake almost everyone makes; also, the unstressed vowels flatten all the way down to /ə/ — English swallows them, so they never sound the way they are written; also, at least one vowel does not say what its spelling suggests — English vowel letters are not reliable here; also, a consonant letter takes an unexpected sound value here, so reading it "as written" comes out wrong.
This is why reading English aloud from spelling alone goes wrong so often: the letters of “supervisory” are not a reliable map of its sounds. The IPA is — each symbol stands for exactly one sound, every time.
“supervisory” sound by sound
“supervisory” is built out of 9 sounds. Say each one on its own first, slowly, then run them together at speed. Every sound links to a full guide with mouth position, the mistake learners make with it, and other words that use it.
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sHold the tongue tip near (not touching) the ridge behind the upper teeth and force a narrow stream of air down the groove of the tongue.
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uːPush the tongue high and back and round the lips into a tight, forward circle; hold it tense and long.
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pPress both lips together, build up air behind them, then release with a puff of air (aspiration) when the sound starts a stressed syllable.
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ərThe same r-coloured tongue shape as /ɜːr/ but weak, short and unstressed — the ending of "teacher", "doctor", "sugar".
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vUpper teeth on the lower lip, push air through the gap, and add voicing so the lip buzzes.
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aɪStart with the mouth open at an /a/-like position and glide up toward /ɪ/, closing the jaw as you go.
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zExactly the /s/ tongue position with voicing added, so the airflow buzzes.
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ərThe same r-coloured tongue shape as /ɜːr/ but weak, short and unstressed — the ending of "teacher", "doctor", "sugar".
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iːSpread the lips into a smile, push the front of the tongue high and forward, and hold the sound tense and long.
Words that rhyme with “supervisory”
Same ending sound from the stressed vowel on — a good way to hear whether you have the vowel right:
Questions people ask about “supervisory”
- How do you pronounce “supervisory”?
- “supervisory” is pronounced /ˌsuːpərˈvaɪzəriː/, with the stress on the third syllable (vaɪ). Press the US or UK button above to hear it spoken.
- How many syllables are in “supervisory”?
- “supervisory” has 5 syllables: suː · pər · vaɪ · zər · iː. The stress pattern is ōoOoo.
- What is the common mispronunciation of “supervisory”?
- People read it off the spelling as /ˈsʌpərvɪsɔːriː/, but it is actually /ˌsuːpərˈvaɪzəriː/, because the stress lands on the third syllable (“vaɪ”), not on the first one — putting the beat at the front is the mistake almost everyone makes.
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