How to pronounce intervention in American English

IPA /ˌɪntərˈvɛnʃən/ Syllables 4 · ihn·ter·vehn·shuhn Stress 3rd syllable
ihn·ter·VEHN·shuhn
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Americans pronounce intervention as ihn-ter-VEHN-shuhn (/ˌɪntərˈvɛnʃən/). In "intervention", the "t" right after N is dropped — the tongue skips the T stop and moves directly from the N position to the next sound. This is called the Silent T after N, and it's one of the defining features of casual American English. It comes out as IHN·ter·VEHN·shuhn. Stress falls on the third syllable — keep everything else short and quick. You'll hear it in sentences like "International law was invoked to justify the intervention".

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Common mistakes

Pronouncing the silent T after N.

In "intervention", the "t" right after N is dropped — the tongue skips the T stop and moves directly from the N position to the next sound. /t/ is completely silent — the tongue skips the T stop and moves directly from the N position to the next sound.

Inserting a vowel before the syllabic consonant.

In "intervention", the short unstressed vowel before "n" disappears — the schwa is absorbed and the "n" becomes the syllable nucleus on its own. Schwa is absorbed — consonant becomes the syllable nucleus.

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Sound by sound

Every sound in "intervention".

4 syllables, 10 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.

ih/ɪ/

Drop your jaw slightly with relaxed lips. Touch the tongue tip behind the bottom front teeth and arch the top-front toward the roof.

Mouth position for SIT Vowel
n/n/

Touch the tip or front edge of your tongue to the roof of your mouth behind your teeth. Air flows through your nose.

Mouth position for /n/ as in NET
t/t/
Dropped

The T is skipped entirely. Your tongue doesn't make contact at the T position.

Mouth position for /t/ as in TEN
er/ər/

Relax your mouth and lift the tongue back and up. Keep the lips neutral.

Mouth position for MOTHER R-Vowel
v/v/

Lift your bottom lip so its inner edge (where the wet part meets the dry part) touches the very bottom of your top front teeth. Add vocal cord vibration as you blow air through.

Mouth position for /v/ as in VAN
eh/ɛ/

Drop your jaw moderately. Touch the tongue tip behind the bottom front teeth and lift the mid-front part slightly toward the roof.

Mouth position for BED Vowel
n/n/

Touch the tip or front edge of your tongue to the roof of your mouth behind your teeth. Air flows through your nose.

Mouth position for /n/ as in NET
sh/ʃ/

Flare your lips and lift the mid-front tongue close to the roof of your mouth. Blow air through without voicing.

Mouth position for /ʃ/ as in SHIP
uh/ʌ/

Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.

n/n/
Syllabic

The schwa before N disappears — N becomes the vowel of the syllable. Go straight from the previous consonant to N.

Mouth position for /n/ as in NET
In real conversation

Hear "intervention" in the wild.

Click any sentence to see the full breakdown — every link, every reduction, every flap-T.

"International law was invoked to justify the intervention."
ihn·ter·NA·shuh·nuhl LAH wuhz uhn·VOHKT tuh JUH·stuh·fahy dhee ihn·ter·VEHN·shuhn
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Watch out

Common pronunciation mistakes in American English.

The textbook way isn't wrong — it's just not how anyone actually says it.

01

Pronouncing the silent T after N.

In "intervention", the "t" right after N is dropped — the tongue skips the T stop and moves directly from the N position to the next sound. /t/ is completely silent — the tongue skips the T stop and moves directly from the N position to the next sound.

interventionIHN·ter·VEHN·shuhn
02

Inserting a vowel before the syllabic consonant.

In "intervention", the short unstressed vowel before "n" disappears — the schwa is absorbed and the "n" becomes the syllable nucleus on its own. Schwa is absorbed — consonant becomes the syllable nucleus.

interventionIHN·ter·VEHN·shuhn
03

Stressing the wrong syllable.

Stress falls on the third syllable, not the others. Stretch VEHN — keep everything else short and quick.

IHN·TER·vehn·SHUHNIHN·ter·VEHN·shuhn
04

Pronouncing the unstressed syllable too fully.

Don't pronounce the third syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.

ihn·ter·VEHN·SHUHNIHN·ter·VEHN·shuhn
Questions

Questions people ask about this.

How is "intervention" stressed in American English?
Stress falls on the third syllable — say "VEHN" with a longer, fuller vowel and keep every other syllable short and quick. The respell "ihn-ter-VEHN-shuhn" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Why does the fourth syllable in "intervention" reduce to "uh"?
Unstressed syllables in American English collapse toward a schwa — a lazy, neutral "uh" sound. The full vowel is what textbooks teach, but in actual American speech every unstressed vowel reduces. The respell "ihn-ter-VEHN-shuhn" shows the reduced form so you can hear the casual rhythm directly.
How do I pronounce the R in "intervention"?
Americans use a relaxed retroflex R: the tongue curls back rather than rolling, and the R is one continuous sound with the vowel before it — not two separate sounds. Don't try to pronounce a separate vowel followed by a separate R. Treat them as a single shape.
Is the American pronunciation of "intervention" different from British English?
American English uses different vowel shapes, a relaxed retroflex R, and connected-speech tricks like flap-T and glottal-stop T that British Received Pronunciation generally avoids. The respell "ihn-ter-VEHN-shuhn" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.

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