r/r/
Curl or bunch your tongue without letting the tip touch the roof of your mouth. Brace the sides of your tongue against your upper back teeth, and round your lips slightly.
How to pronounce revolutionary in American English
reh·vuh·LOO·shuh·nair·ee
Start here
Americans pronounce revolutionary as reh-vuh-LOO-shuh-nair-ee (/ˌrɛvəˈluʃəˌnɛri/). Stress falls on the third syllable — keep everything else short and quick. You'll hear it in sentences like "Biotechnology advances are leading to revolutionary medical treatments".
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Sound by sound
Every sound in "revolutionary".
6 syllables, 11 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
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.
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.
uh/ʌ/
Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
l/l/
SyllabicThe schwa before L disappears — L becomes the vowel of the syllable. Go straight from the previous consonant to a Dark L.
oo/u/
Round your lips into a tight circle. Let your tongue rest in the middle of your mouth, slightly raised.
sh/ʃ/
Flare your lips and lift the mid-front tongue close to the roof of your mouth. Blow air through without voicing.
uh/ʌ/
Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
n/n/
SyllabicThe schwa before N disappears — N becomes the vowel of the syllable. Go straight from the previous consonant to N.
air/ɛr/
Start with the 'eh' vowel mouth position. Pull the tongue back and up while flaring the lips for the 'r'.
ee/i/
Pull the corners of your lips back slightly. Arch the middle-front of your tongue high toward the roof of the mouth.
In real conversation
Hear "revolutionary" in the wild.
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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
Stressing the wrong syllable.
Stress falls on the third syllable, not the others. Stretch LOO — keep everything else short and quick.
REH·VUH·loo·SHUH·NAIR·EE→REH·vuh·LOO·shuh·NAIR·ee
02
Pronouncing the unstressed syllable too fully.
Don't pronounce the first syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.
reh·VUH·LOO·shuh·nair·ee→REH·vuh·LOO·shuh·NAIR·ee
03
Pronouncing the "R" too clearly.
Americans use a relaxed retroflex R — the tongue curls back rather than rolling. The R is one continuous sound with the vowel before it, not two separate sounds.
… (no R)→… r (curl the tongue)
Questions
Questions people ask about this.
How is "revolutionary" stressed in American English?
Stress falls on the third syllable — say "LOO" with a longer, fuller vowel and keep every other syllable short and quick. The respell "reh-vuh-LOO-shuh-nair-ee" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Why does the second syllable in "revolutionary" 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 "reh-vuh-LOO-shuh-nair-ee" shows the reduced form so you can hear the casual rhythm directly.
How do I pronounce the R in "revolutionary"?
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 "revolutionary" 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 "reh-vuh-LOO-shuh-nair-ee" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.
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