g/g/
Raise the back of your tongue to touch the soft palate. Add vocal cord vibration, then release.
How to pronounce groundbreaking in American English
GROWND·bray·kuhng
Start here
Americans pronounce groundbreaking as GROWND-bray-kuhng (/ˈgraʊndˌbreɪkəŋ/). Stress falls on the first syllable — keep everything else short and quick. You'll hear it in sentences like "The smartphone manufacturer announced groundbreaking features yesterday".
Now you try.
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Sound by sound
Every sound in "groundbreaking".
3 syllables, 11 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
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.
ow/aʊ/
Start with a dropped jaw and flat tongue. Glide into a relaxed, slightly rounded lip position as the back of the tongue stretches up.
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.
d/d/
Touch the tip of your tongue to the roof of your mouth just behind your teeth. Add vocal cord vibration as you release.
b/b/
Press your lips together, add vocal cord vibration, then release.
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.
ay/eɪ/
Start with your jaw slightly open and the front of your tongue forward and slightly up. Glide upward, your jaw closes a little more and your tongue arches higher toward the roof of the mouth.
k/k/
Raise the back of your tongue to touch the soft palate (velum). Stop the air, then release.
uh/ʌ/
Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
ng/ŋ/
Lift the back of your tongue to the soft palate. Lower your soft palate to let air flow through your nose.
In real conversation
Hear "groundbreaking" 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
Releasing the final consonant with a puff of air.
In "groundbreaking", the "k" is not released — the articulators get into position but hold without the burst of air. Air stops but there's no release burst — the articulators hold position.
groundbreaking→GROWND·BRAY·kuhng
02
Stressing the wrong syllable.
Stress falls on the first syllable, not the others. Stretch GROWND — keep everything else short and quick.
grownd·BRAY·KUHNG→GROWND·BRAY·kuhng
03
Pronouncing the unstressed syllable too fully.
Don't pronounce the second syllable too fully. The unstressed syllable reduces to a schwa — the lazy "uh" sound — in casual speech.
GROWND·bray·KUHNG→GROWND·BRAY·kuhng
Questions
Questions people ask about this.
How is "groundbreaking" stressed in American English?
Stress falls on the first syllable — say "GROWND" with a longer, fuller vowel and keep every other syllable short and quick. The respell "GROWND-bray-kuhng" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Why does the third syllable in "groundbreaking" 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 "GROWND-bray-kuhng" shows the reduced form so you can hear the casual rhythm directly.
Is the American pronunciation of "groundbreaking" 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 "GROWND-bray-kuhng" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.
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