h/h/
Push a stream of air from your throat through your open mouth. No tongue or lip contact.
How to pronounce hydrogen in American English
HAHY·druh·juhn
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Americans pronounce hydrogen as HAHY-druh-juhn (/ˈhaɪdrədʒən/). In "hydrogen", the "dr" cluster blends into a "jr" sound — a natural American English pronunciation. This is called the DR Sounds Like JR, and it's one of the defining features of casual American English. It comes out as HAHY·druh·juhn. Stress falls on the first syllable — keep everything else short and quick. You'll hear it in sentences like "Water molecules are composed of two hydrogen atoms and one oxygen atom".
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Sound by sound
Every sound in "hydrogen".
3 syllables, 8 sounds. Tap a syllable to jump to its row, then explore each sound's mouth shape and how it's made.
ahy/aɪ/
Start with your jaw open wide and your tongue resting low and flat. Glide the front of your tongue up toward the roof of your mouth as your jaw closes halfway.
d/d/
PalatalizedTongue pulls back slightly from the D position, blending into R. Sounds close to 'jr'.
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.
uh/ʌ/
Relax your lips, jaw, and tongue completely. Drop your jaw slightly and keep the tongue neutral.
j/dʒ/
Touch the front of your tongue to the roof of your mouth, then release into a 'zh' position. Add vocal cord vibration.
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.
In real conversation
Hear "hydrogen" 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
Saying a clean "dr" instead of a "j" sound.
In "hydrogen", the "dr" cluster blends into a "jr" sound — a natural American English pronunciation. /d/ shifts toward /dʒ/ ("j"), so DR sounds like "jr".
HAHY-druh-juhn→HAHY·druh·juhn
02
Inserting a vowel before the syllabic consonant.
In "hydrogen", 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.
hydrogen→HAHY·druh·juhn
03
Stressing the wrong syllable.
Stress falls on the first syllable, not the others. Stretch HAHY — keep everything else short and quick.
hahy·DRUH·JUHN→HAHY·druh·juhn
04
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.
HAHY·DRUH·juhn→HAHY·druh·juhn
Questions
Questions people ask about this.
How is "hydrogen" stressed in American English?
Stress falls on the first syllable — say "HAHY" with a longer, fuller vowel and keep every other syllable short and quick. The respell "HAHY-druh-juhn" marks the stressed syllable in capitals so the rhythm is easy to read at a glance.
Why does the second syllable in "hydrogen" 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 "HAHY-druh-juhn" shows the reduced form so you can hear the casual rhythm directly.
Is the American pronunciation of "hydrogen" 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 "HAHY-druh-juhn" reflects the casual American form; British dictionaries typically print a citation form with crisper consonants and different vowel choices.
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