How to pronounce “coincide”
Coincide is pronounced /ˌkoʊɪnˈsaɪd/. It has 3 syllables, and the beat falls on the third one — saɪd. 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 3 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 saɪd in the right place matters more to a listener than getting every vowel perfect.
Stress pattern ōoO — capital letters mark the stressed beats.
The common mispronunciation of “coincide”
✗ Often said: /ˈkɔɪnkaɪd/ — the spelling, read straight off the page.
✓ Actually: /ˌkoʊɪnˈsaɪd/
Why the two come apart: the silent final “e” (it lengthens the vowel instead) is not pronounced, even though the spelling begs you to say it; also, the stress lands on the third syllable (“saɪd”), not on the first one — putting the beat at the front is the mistake almost everyone makes; also, at least one vowel does not say what its spelling suggests — English vowel letters are not reliable here.
This is why reading English aloud from spelling alone goes wrong so often: the letters of “coincide” are not a reliable map of its sounds. The IPA is — each symbol stands for exactly one sound, every time.
“coincide” sound by sound
“coincide” is built out of 7 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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kRaise the back of the tongue to touch the soft palate, seal the air, then release it with a puff.
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oʊStart with mid-back, lightly rounded lips and glide toward /ʊ/, tightening the rounding as you finish.
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ɪRelax the tongue slightly lower and further back than for /iː/, keep the lips neutral, and make it short and lax.
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nTouch the tongue tip to the ridge behind the upper teeth, lower the soft palate, and voice the air out through the nose.
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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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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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dSame tongue position as /t/ — tip on the ridge behind the upper teeth — but voice the sound and release it without aspiration.
Silent letters in “coincide”
Letters you write but never say — this is the single biggest reason the word trips people up:
- eThe letter “e”Silent final “e” (it lengthens the vowel instead) — write it, but do not let it reach your mouth.
Words that rhyme with “coincide”
Same ending sound from the stressed vowel on — a good way to hear whether you have the vowel right:
Questions people ask about “coincide”
- How do you pronounce “coincide”?
- “coincide” is pronounced /ˌkoʊɪnˈsaɪd/, with the stress on the third syllable (saɪd). Press the US or UK button above to hear it spoken.
- How many syllables are in “coincide”?
- “coincide” has 3 syllables: koʊ · ɪn · saɪd. The stress pattern is ōoO.
- What is the common mispronunciation of “coincide”?
- People read it off the spelling as /ˈkɔɪnkaɪd/, but it is actually /ˌkoʊɪnˈsaɪd/, because the silent final “e” (it lengthens the vowel instead) is not pronounced, even though the spelling begs you to say it.
- Does “coincide” have any silent letters?
- Yes — silent final “e” (it lengthens the vowel instead).
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