k/k/
Raise the back of your tongue to touch the soft palate (velum). Stop the air, then release.
How to pronounce cardiovascular in American English
kar·dee·oh·VA·skyuh·ler
Start here
Americans pronounce cardiovascular as kar-dee-oh-VA-skyuh-ler (/ˌkɑrdioʊˈvæskjələr/). In "cardiovascular", the "t" between vowels sounds like a quick "d" — the tongue briefly taps the ridge behind the upper teeth. This is called the Flap T, a small move that separates 'classroom' from 'native'. So instead of kar·tee·oh·VA·skyuh·ler, you get KAR·dee·oh·VA·skyuh·ler. Stress falls on the fourth syllable — keep everything else short and quick. You'll hear it in sentences like "Swimming laps is a great way to build cardiovascular endurance".
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Sound by sound
Every sound in "cardiovascular".
6 syllables, 13 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
ar/ɑr/
Open wide for the 'ah' vowel. Lift the tongue back and up while flaring the lips for the 'r'.
d/d/
FlapQuickly bounce the front of your tongue against the roof of your mouth. Same as Flap T — a quick tap without stopping airflow.
ee/i/
Pull the corners of your lips back slightly. Arch the middle-front of your tongue high toward the roof of the mouth.
oh/oʊ/
Start with your mouth slightly open, then close your jaw slightly as your lips round. Shift your tongue back slightly, then stretch the back up.
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.
a/æ/
Drop the jaw noticeably. Keep the body of the tongue low and forward, and don't let the back of the tongue raise toward the soft palate. Pull the lip corners back slightly, almost a starting smile.
s/s/
Place your tongue tip near the roof of your mouth behind your top teeth. Push air through the narrow gap. No voicing.
k/k/
Raise the back of your tongue to touch the soft palate (velum). Stop the air, then release.
y/j/
Lift the middle of your tongue toward the roof of your mouth, but stop just short of touching. /j/ is an approximant, not a stop. The tongue tip stays down, lightly resting near the back of your bottom front teeth. Voice runs through the whole gesture, and the tongue glides smoothly down into the next vowel. The lips stay neutral or pre-shape for the upcoming vowel (rounding early for OO in <em>youth</em>, for example).
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.
er/ər/
Relax your mouth and lift the tongue back and up. Keep the lips neutral.
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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
Saying a hard "T" in the middle.
In "cardiovascular", the "t" between vowels sounds like a quick "d" — the tongue briefly taps the ridge behind the upper teeth. /t/ or /d/ becomes a quick tap [ɾ] — sounds like a soft D. The tongue briefly taps the ridge behind the upper teeth.
kar-tee-oh-VA-skyuh-ler→KAR·dee·oh·VA·skyuh·ler
02
Stressing the wrong syllable.
Stress falls on the fourth syllable, not the others. Stretch VA — keep everything else short and quick.
KAR·DEE·OH·va·SKYUH·LER→KAR·dee·oh·VA·skyuh·ler
03
Pronouncing the unstressed syllable too fully.
Don't pronounce the fourth syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.
kar·dee·oh·VA·SKYUH·ler→KAR·dee·oh·VA·skyuh·ler
04
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 "cardiovascular" stressed in American English?
Stress falls on the fourth syllable — say "VA" with a longer, fuller vowel and keep every other syllable short and quick. The respell "kar-dee-oh-VA-skyuh-ler" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Why doesn't the T sound like a T in "cardiovascular"?
In American English, when /t/ sits between two vowels with the second one unstressed, it turns into a quick D-like flap. So "cardiovascular" sounds closer to "kar-dee-oh-VA-skyuh-ler" than to a crisp-T pronunciation. This is the flap-T rule, one of the most distinctive sounds of casual American speech.
Why does the fifth syllable in "cardiovascular" 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 "kar-dee-oh-VA-skyuh-ler" shows the reduced form so you can hear the casual rhythm directly.
How do I pronounce the R in "cardiovascular"?
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.
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